BALATON Zoltan [Sun, 26 May 2024 23:12:43 +0000 (01:12 +0200)]
target/ppc/mmu_common.c: Simplify ppc6xx_tlb_pte_check()
Invert conditions to avoid deep nested ifs and return early instead.
Remove some obvious comments that don't add more clarity.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
BALATON Zoltan [Sun, 26 May 2024 23:12:42 +0000 (01:12 +0200)]
target/ppc/mmu_common.c: Return directly in ppc6xx_tlb_pte_check()
Instead of using a local ret variable return directly and remove the
local.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
BALATON Zoltan [Sun, 26 May 2024 23:12:41 +0000 (01:12 +0200)]
target/ppc/mmu_common.c: Remove yet another single use local variable
In ppc6xx_tlb_pte_check() the pp variable is used only once to pass it
to a function parameter with the same name. Remove the local and
inline the value. Also use named constant for the hex value to make it
clearer.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
BALATON Zoltan [Sun, 26 May 2024 23:12:40 +0000 (01:12 +0200)]
target/ppc/mmu_common.c: Remove another single use local variable
In ppc6xx_tlb_pte_check() the pteh variable is used only once to
compare to the h parameter of the function. Inline its value and use
pteh name for the function parameter which is more descriptive.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
BALATON Zoltan [Sun, 26 May 2024 23:12:39 +0000 (01:12 +0200)]
target/ppc/mmu_common.c: Remove single use local variable
The ptev variable in ppc6xx_tlb_pte_check() is used only once and just
obfuscates an otherwise clear value. Get rid of it.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
BALATON Zoltan [Sun, 26 May 2024 23:12:38 +0000 (01:12 +0200)]
target/ppc/mmu_common.c: Remove single use local variable
The ptem variable in ppc6xx_tlb_pte_check() is used only once,
simplify by removing it as the value is already clear itself without
adding a local name for it.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
BALATON Zoltan [Sun, 26 May 2024 23:12:37 +0000 (01:12 +0200)]
target/ppc/mmu_common.c: Remove local name for a constant
The mmask local variable is a less descriptive local name for a
constant. Drop it and use the constant directly in the two places it
is needed.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
BALATON Zoltan [Sun, 26 May 2024 23:12:36 +0000 (01:12 +0200)]
target/ppc: Reorganise and rename ppc_hash32_pp_prot()
Reorganise ppc_hash32_pp_prot() swapping the if legs so it does not
test for negative first and clean up to make it shorter. Also rename
it to ppc_hash32_prot().
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Chinmay Rath [Tue, 9 Jul 2024 11:43:41 +0000 (17:13 +0530)]
target/ppc : Update VSX storage access insns to use tcg_gen_qemu _ld/st_i128.
Updated many VSX instructions to use tcg_gen_qemu_ld/st_i128, instead of using
tcg_gen_qemu_ld/st_i64 consecutively.
Introduced functions {get,set}_vsr_full to facilitate the above & for future use.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Chinmay Rath <rathc@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Chinmay Rath [Tue, 9 Jul 2024 11:43:40 +0000 (17:13 +0530)]
target/ppc: Update VMX storage access insns to use tcg_gen_qemu_ld/st_i128.
Updated instructions {l, st}vx to use tcg_gen_qemu_ld/st_i128,
instead of using 64 bits loads/stores in succession.
Introduced functions {get, set}_avr_full in vmx-impl.c.inc to
facilitate the above, and potential future usage.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Chinmay Rath <rathc@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Chinmay Rath [Tue, 9 Jul 2024 11:43:39 +0000 (17:13 +0530)]
target/ppc: Move get/set_avr64 functions to vmx-impl.c.inc.
Those functions are used to ld/st data to and from Altivec registers,
in 64 bits chunks, and are only used in vmx-impl.c.inc file,
hence the clean-up movement.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Chinmay Rath <rathc@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Chinmay Rath [Tue, 18 Jun 2024 08:58:31 +0000 (14:28 +0530)]
target/ppc: Move VSX fp compare insns to decodetree.
Moving the following instructions to decodetree specification:
xvcmp{eq, gt, ge, ne}{s, d}p : XX3-form
The changes were verified by validating that the tcg-ops generated for those
instructions remain the same which were captured using the '-d in_asm,op' flag.
Signed-off-by: Chinmay Rath <rathc@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Chinmay Rath [Tue, 18 Jun 2024 08:58:30 +0000 (14:28 +0530)]
target/ppc: Move VSX vector storage access insns to decodetree.
Moving the following instructions to decodetree specification:
lxv{b16, d2, h8, w4, ds, ws}x : X-form
stxv{b16, d2, h8, w4}x : X-form
The changes were verified by validating that the tcg-ops generated for those
instructions remain the same, which were captured using the '-d in_asm,op' flag.
Signed-off-by: Chinmay Rath <rathc@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Chinmay Rath [Tue, 18 Jun 2024 08:58:29 +0000 (14:28 +0530)]
target/ppc: Move VSX vector with length storage access insns to decodetree.
Moving the following instructions to decodetree specification :
{l, st}xvl(l) : X-form
The changes were verified by validating that the tcg-ops generated by those
instructions remain the same, which were captured using the '-d in_asm,op' flag.
Also added a new function do_ea_calc_ra to calculate the effective address :
EA <- (RA == 0) ? 0 : GPR[RA], which is now used by the above-said insns,
and shall be used later by (p){lx, stx}vp insns.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Chinmay Rath <rathc@linux.ibm.com>
[np: Fix 32-bit build]
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Chinmay Rath [Tue, 18 Jun 2024 08:58:28 +0000 (14:28 +0530)]
target/ppc: Moving VSX scalar storage access insns to decodetree.
Moving the following instructions to decodetree specification :
lxs{d, iwa, ibz, ihz, iwz, sp}x : X-form
stxs{d, ib, ih, iw, sp}x : X-form
The changes were verified by validating that the tcg-ops generated by those
instructions remain the same, which were captured using the '-d in_asm,op' flag.
Signed-off-by: Chinmay Rath <rathc@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Chinmay Rath [Thu, 23 May 2024 09:48:21 +0000 (15:18 +0530)]
target/ppc: Move VSX logical instructions to decodetree.
Moving the following instructions to decodetree specification :
xxl{and, andc, or, orc, nor, xor, nand, eqv} : XX3-form
The changes were verified by validating that the tcg ops generated by those
instructions remain the same, which were captured with the '-d in_asm,op' flag.
Signed-off-by: Chinmay Rath <rathc@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Chinmay Rath [Thu, 23 May 2024 09:48:20 +0000 (15:18 +0530)]
target/ppc: Move VSX arithmetic and max/min insns to decodetree.
Moving the following instructions to decodetree specification:
x{s, v}{add, sub, mul, div}{s, d}p : XX3-form
xs{max, min}dp, xv{max, min}{s, d}p : XX3-form
The changes were verfied by validating that the tcg ops generated by those
instructions remain the same, which were captured with the '-d in_asm,op' flag.
Signed-off-by: Chinmay Rath <rathc@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Chinmay Rath [Thu, 23 May 2024 09:48:19 +0000 (15:18 +0530)]
target/ppc: Move ISA300 flag check out of do_helper_XX3.
Moving PPC2_ISA300 flag check out of do_helper_XX3 method in vmx-impl.c.inc
so that the helper can be used with other instructions as well.
Signed-off-by: Chinmay Rath <rathc@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Chinmay Rath [Thu, 23 May 2024 09:44:54 +0000 (15:14 +0530)]
target/ppc: Improve VMX integer add/sub saturate instructions.
No need for a full comparison; xor produces non-zero bits for QC just fine.
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Chinmay Rath <rath.chinmay@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Chinmay Rath [Thu, 23 May 2024 09:44:53 +0000 (15:14 +0530)]
target/ppc: Move VMX integer add/sub saturate insns to decodetree.
Moving the following instructions to decodetree specification :
v{add,sub}{u,s}{b,h,w}s : VX-form
The changes were verified by validating that the tcg ops generated by those
instructions remain the same, which were captured with the '-d in_asm,op' flag.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Chinmay Rath <rathc@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Frederic Barrat [Wed, 24 Jul 2024 21:21:30 +0000 (16:21 -0500)]
pnv/xive2: Dump more END state with 'info pic'
Additional END state 'info pic' information as added. The 'ignore',
'crowd' and 'precluded escalation control' bits of an Event Notification
Descriptor are all used when delivering an interrupt targeting a VP-group
or crowd.
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Michael Kowal <kowal@linux.vnet.ibm.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Frederic Barrat [Wed, 24 Jul 2024 21:21:29 +0000 (16:21 -0500)]
pnv/xive2: Refine TIMA 'info pic' output
In XIVE Gen 2 there were some minor changes to the TIMA header that were
updated when printed.
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Michael Kowal <kowal@linux.vnet.ibm.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Frederic Barrat [Wed, 24 Jul 2024 21:21:28 +0000 (16:21 -0500)]
pnv/xive2: Move xive2_nvp_pic_print_info() to xive2.c
Moving xive2_nvp_pic_print_info() to align with the other "pic_print_info"
functions.
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Michael Kowal <kowal@linux.vnet.ibm.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Frederic Barrat [Wed, 24 Jul 2024 21:21:27 +0000 (16:21 -0500)]
pnv/xive2: Fail VST entry address computation if table has no VSD
Fail VST entry address computation if firmware doesn't define a descriptor
for one of the Virtualization Structure Tables (VST), there's no point in
trying to compute the address of its entry. Abort the operation and log
an error.
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Michael Kowal <kowal@linux.vnet.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Frederic Barrat [Wed, 24 Jul 2024 21:21:26 +0000 (16:21 -0500)]
pnv/xive2: Set Translation Table for the NVC port space
Set Translation Table for the NVC port space is missing. The xive model
doesn't take into account the remapping of IO operations via the Set
Translation Table but firmware is allowed to define it for the Notify
Virtual Crowd (NVC), like it's already done for the other VST tables.
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Michael Kowal <kowal@linux.vnet.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Frederic Barrat [Wed, 24 Jul 2024 21:21:25 +0000 (16:21 -0500)]
pnv/xive2: Enable VST NVG and NVC index compression
Enable NVG and NVC VST tables for index compression which indicates the number
of bits the address is shifted to the right for the table accesses.
The compression values are defined as:
0000 - No compression
0001 - 1 bit shift
0010 - 2 bit shift
....
1000 - 8 bit shift
1001-1111 - No compression
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Michael Kowal <kowal@linux.vnet.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Frederic Barrat [Wed, 24 Jul 2024 21:21:24 +0000 (16:21 -0500)]
pnv/xive2: Configure Virtualization Structure Tables through the PC
Both the virtualization layer (VC) and presentation layer (PC) need to
be configured to access the VSTs. Since the information is redundant,
the xive model combines both into one set of tables and only the
definitions going through the VC are kept. The definitions through the
PC are ignored. That works well as long as firmware calls the VC for
all the tables.
For the NVG and NVC tables, it can make sense to only configure them
with the PC, since they are only used by the presenter. So this patch
allows firmware to configure the VST tables through the PC as well.
The definitions are still shared, since the VST tables can be set
through both the VC and/or PC, they are dynamically re-mapped in
memory by first deleting the memory subregion.
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Michael Kowal <kowal@linux.vnet.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Frederic Barrat [Wed, 24 Jul 2024 21:21:23 +0000 (16:21 -0500)]
pnv/xive2: Add NVG and NVC to cache watch facility
The cache watch facility uses the same register interface to handle
entries in the NVP, NVG and NVC tables. A bit-field in the 'watchX
specification' register tells the table type. So far, that bit-field
was not read and the code assumed a read/write to the NVP table.
This patch allows to read/write entries in the NVG and NVC table as
well.
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Michael Kowal <kowal@linux.vnet.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Wed, 24 Jul 2024 21:21:22 +0000 (16:21 -0500)]
pnv/xive: Support cache flush and queue sync inject with notifications
Adds support for writing a completion notification byte in memory
whenever a cache flush or queue sync inject operation is requested by
software. QEMU does not cache any of the XIVE data that is in memory and
therefore it simply writes the completion notification byte at the time
that the operation is requested.
Co-authored-by: Glenn Miles <milesg@linux.vnet.ibm.com>
Signed-off-by: Glenn Miles <milesg@linux.vnet.ibm.com>
Signed-off-by: Michael Kowal <kowal@linux.vnet.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Michael Kowal [Wed, 24 Jul 2024 21:21:21 +0000 (16:21 -0500)]
pnv/xive2: Structure/define alignment changes
Made changes to some structure and define elements to ease review in
next patchset.
Signed-off-by: Michael Kowal <kowal@linux.vnet.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Frederic Barrat [Wed, 24 Jul 2024 21:21:20 +0000 (16:21 -0500)]
pnv/xive2: XIVE2 Cache Watch, Cache Flush and Sync Injection support
XIVE offers a 'cache watch facility', which allows software to read/update
a potentially cached table entry with no software lock. There's one such
facility in the Virtualization Controller (VC) to update the ESB and END
entries and one in the Presentation Controller (PC) to update the
NVP/NVG/NVC entries.
Each facility has 4 cache watch engines to control the updates and
firmware can request an available engine by querying the hardware
'watch_assign' register of the VC or PC. The engine is then reserved and
is released after the data is updated by reading the 'watch_spec' register
(which also allows to check for a conflict during the update).
If no engine is available, the special value 0xFF is returned and
firmware is expected to repeat the request until an engine becomes
available.
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Michael Kowal <kowal@linux.vnet.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Chalapathi V [Wed, 26 Jun 2024 09:05:28 +0000 (04:05 -0500)]
tests/qtest: Add pnv-spi-seeprom qtest
In this commit Write a qtest pnv-spi-seeprom-test to check the
SPI transactions between spi controller and seeprom device.
Signed-off-by: Chalapathi V <chalapathi.v@linux.ibm.com>
Acked-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Caleb Schlossin <calebs@linux.vnet.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Chalapathi V [Wed, 26 Jun 2024 09:05:27 +0000 (04:05 -0500)]
hw/ppc: SPI controller wiring to P10 chip
In this commit, create SPI controller on p10 chip and connect cs irq.
The QOM tree of pnv-spi and seeprom are.
/machine (powernv10-machine)
/chip[0] (power10_v2.0-pnv-chip)
/pib_spic[2] (pnv-spi)
/pnv-spi-bus.2 (SSI)
/xscom-spi[0] (memory-region)
/machine (powernv10-machine)
/peripheral-anon (container)
/device[0] (25csm04)
/WP#[0] (irq)
/ssi-gpio-cs[0] (irq)
(qemu) qom-get /machine/peripheral-anon /device[76] "parent_bus"
"/machine/chip[0]/pib_spic[2]/pnv-spi-bus.2"
Signed-off-by: Chalapathi V <chalapathi.v@linux.ibm.com>
Reviewed-by: Glenn Miles <milesg@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Chalapathi V [Wed, 26 Jun 2024 09:05:26 +0000 (04:05 -0500)]
hw/block: Add Microchip's 25CSM04 to m25p80
Add Microchip's 25CSM04 Serial EEPROM to m25p80. 25CSM04 provides 4 Mbits
of Serial EEPROM utilizing the Serial Peripheral Interface (SPI) compatible
bus. The device is organized as 524288 bytes of 8 bits each (512Kbyte) and
is optimized for use in consumer and industrial applications where reliable
and dependable nonvolatile memory storage is essential.
Signed-off-by: Chalapathi V <chalapathi.v@linux.ibm.com>
Reviewed-by: Glenn Miles <milesg@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Chalapathi V [Wed, 26 Jun 2024 09:05:25 +0000 (04:05 -0500)]
hw/ssi: Extend SPI model
In this commit SPI shift engine and sequencer logic is implemented.
Shift engine performs serialization and de-serialization according to the
control by the sequencer and according to the setup defined in the
configuration registers. Sequencer implements the main control logic and
FSM to handle data transmit and data receive control of the shift engine.
Signed-off-by: Chalapathi V <chalapathi.v@linux.ibm.com>
Reviewed-by: Caleb Schlossin <calebs@linux.vnet.ibm.com>
Reviewed-by: Glenn Miles <milesg@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Chalapathi V [Wed, 26 Jun 2024 09:05:24 +0000 (04:05 -0500)]
hw/ssi: Add SPI model
SPI controller device model supports a connection to a single SPI responder.
This provide access to SPI seeproms, TPM, flash device and an ADC controller.
All SPI function control is mapped into the SPI register space to enable full
control by firmware. In this commit SPI configuration component is modelled
which contains all SPI configuration and status registers as well as the hold
registers for data to be sent or having been received.
An existing QEMU SSI framework is used and SSI_BUS is created.
Signed-off-by: Chalapathi V <chalapathi.v@linux.ibm.com>
Reviewed-by: Caleb Schlossin <calebs@linux.vnet.ibm.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Glenn Miles <milesg@linux.ibm.com>
[np: Fix FDT macro compile for qtest]
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Chalapathi V [Wed, 26 Jun 2024 09:05:23 +0000 (04:05 -0500)]
ppc/pnv: Remove ppc target dependency from pnv_xscom.h
In this commit target specific dependency from include/hw/ppc/pnv_xscom.h
has been removed so that pnv_xscom.h can be included outside hw/ppc.
Signed-off-by: Chalapathi V <chalapathi.v@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Caleb Schlossin <calebs@linux.vnet.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Fri, 24 May 2024 05:02:46 +0000 (15:02 +1000)]
ppc/pnv: Add an LPAR per core machine option
Recent POWER CPUs can operate in "LPAR per core" or "LPAR per thread"
modes. In per-core mode, some SPRs and IPI doorbells are shared between
threads in a core. In per-thread mode, supervisor and user state is
not shared between threads.
OpenPOWER systems after POWER8 use LPAR per thread mode, and it is
required for KVM. Enterprise systems use LPAR per core mode, as they
partition the machine by core.
Implement a lpar-per-core machine option for powernv machines. This
is fixed true for POWER8 machines, and defaults off for P9 and P10.
With this change, powernv8 SMT now works sufficiently to run Linux,
with a single socket. Multi-threaded KVM guests still have problems,
as does multi-socket Linux boot.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Thu, 16 May 2024 13:44:12 +0000 (23:44 +1000)]
ppc/pnv: Implement POWER10 PC xscom registers for direct controls
The PC unit in the processor core contains xscom registers that provide
low level status and control of the CPU.
This implements "direct controls", sufficient for skiboot firmware,
which uses it to send NMI IPIs between CPUs.
POWER10 is sufficiently different from POWER9 (particularly with respect
to QME and special wakeup) that it is not trivial to implement POWER9
support by reusing the code.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Fri, 12 Jul 2024 03:16:44 +0000 (13:16 +1000)]
ppc/pnv: Add a CPU nmi and resume function
Power CPUs have an execution control facility that can pause, resume,
and cause NMIs, among other things. Add a function that will nmi a CPU
and resume it if it was paused, in preparation for implementing the
control facility.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Tue, 18 Jun 2024 02:45:34 +0000 (12:45 +1000)]
ppc/pnv: Add big-core machine property
Big-core implementation is complete, so expose it as a machine
property that may be set with big-core=on option on powernv9 and
powernv10 machines.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Tue, 18 Jun 2024 03:09:54 +0000 (13:09 +1000)]
ppc/pnv: Add POWER10 ChipTOD quirk for big-core
POWER10 has a quirk in its ChipTOD addressing that requires the even
small-core to be selected even when programming the odd small-core.
This allows skiboot chiptod init to run in big-core mode.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Thu, 11 Jul 2024 08:31:35 +0000 (18:31 +1000)]
ppc/pnv: Implement Power9 CPU core thread state indirect register
Power9 CPUs have a core thread state register accessible via SPRC/SPRD
indirect registers. This register includes a bit for big-core mode,
which skiboot requires.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Thu, 11 Jul 2024 08:37:25 +0000 (18:37 +1000)]
ppc/pnv: Implement big-core PVR for Power9/10
Power9/10 CPUs have PVR[51] set in small-core mode and clear in big-core
mode. This is used by skiboot firmware.
PVR is not hypervisor-privileged but it is not so important that spapr
to implement this because it's generally masked out of PVR matching code
in kernels, and only used by firmware.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Thu, 11 Jul 2024 09:06:14 +0000 (19:06 +1000)]
ppc/pnv: Add allow for big-core differences in DT generation
device-tree building needs to account for big-core mode, because it is
driven by qemu cores (small cores). Every second core should be skipped,
and every core should describe threads for both small-cores that make
up the big core.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Thu, 16 May 2024 05:25:12 +0000 (15:25 +1000)]
ppc/pnv: Add a big-core mode that joins two regular cores
POWER9 and POWER10 machines come in two variants, big-core and
small-core. Big-core machines are SMT8 from software's point of view,
but the low level platform topology ("xscom registers and pervasive
addressing"), these look more like a pair of small cores ganged
together.
Presently the way this is modelled is to create one SMT8 PnvCore and add
special cases to xscom and pervasive for big-core mode that tries to
split this into two small cores, but this is becoming too complicated to
manage.
A better approach is to create 2 core structures and ganging them
together to look like an SMT8 core in TCG. Then the xscom and pervasive
models mostly do not need to differentiate big and small core modes.
This change adds initial mode bits and QEMU topology handling to
split SMT8 cores into 2xSMT4 cores.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Tue, 18 Jun 2024 02:56:53 +0000 (12:56 +1000)]
ppc: Add has_smt_siblings property to CPUPPCState
The decision to branch out to a slower SMT path in instruction
emulation will become a bit more complicated with the way that
"big-core" topology that will be implemented in subsequent changes.
Hide these details from the wider CPU emulation code with a bool
has_smt_siblings flag that can be set by machine initialisation.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Fri, 24 May 2024 07:49:52 +0000 (17:49 +1000)]
target/ppc: Add helpers to check for SMT sibling threads
Add helpers for TCG code to determine if there are SMT siblings
sharing per-core and per-lpar registers. This simplifies the
callers and makes SMT register topology simpler to modify with
later changes.
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Thu, 16 May 2024 05:25:12 +0000 (15:25 +1000)]
ppc: Add a core_index to CPUPPCState for SMT vCPUs
The way SMT thread siblings are matched is clunky, using hard-coded
logic that checks the PIR SPR.
Change that to use a new core_index variable in the CPUPPCState,
where all siblings have the same core_index. CPU realize routines have
flexibility in setting core/sibling topology.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Fri, 24 May 2024 01:54:09 +0000 (11:54 +1000)]
ppc/pnv: Extend chip_pir class method to TIR as well
The chip_pir chip class method allows the platform to set the PIR
processor identification register. Extend this to a more general
ID function which also allows the TIR to be set. This is in
preparation for "big core", which is a more complicated topology
of cores and threads.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Fri, 24 May 2024 05:52:04 +0000 (15:52 +1000)]
ppc/pnv: use class attribute to limit SMT threads for different machines
Use a class attribute to specify the number of SMT threads per core
permitted for different machines, 8 for powernv8 and 4 for powernv9/10.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Sun, 26 May 2024 11:24:00 +0000 (21:24 +1000)]
target/ppc: Move SPR indirect registers into PnvCore
SPRC/SPRD were recently added to all BookS CPUs supported, but
they are only tested on POWER9 and POWER10, so restrict them to
those CPUs.
SPR indirect scratch registers presently replicated per-CPU like
SMT SPRs, but the PnvCore is a better place for them since they
are restricted to P9/P10.
Also add SPR indirect read access to core thread state for POWER9
since skiboot accesses that when booting to check for big-core
mode.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Fri, 24 May 2024 11:58:18 +0000 (21:58 +1000)]
ppc/pnv: Move timebase state into PnvCore
The timebase state machine is per per-core state and can be driven
by any thread in the core. It is currently implemented as a hack
where the state is in a CPU structure and only thread 0's state is
accessed by the chiptod, which limits programming the timebase
side of the state machine to thread 0 of a core.
Move the state out into PnvCore and share it among all threads.
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Sun, 26 May 2024 05:04:05 +0000 (15:04 +1000)]
ppc/pnv: Add pointer from PnvCPUState to PnvCore
This helps move core state from CPU to core structures.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Sat, 6 Jul 2024 03:22:58 +0000 (13:22 +1000)]
target/ppc: Fix msgsnd for POWER8
POWER8 (ISA v2.07S) introduced the doorbell facility, the msgsnd
instruction behaved mostly like msgsndp, it was addressed by TIR
and could only send interrupts between threads on the core.
ISA v3.0 changed msgsnd to be addressed by PIR and can interrupt
any thread in the system.
msgsnd only implements the v3.0 semantics, which can make
multi-threaded POWER8 hang when booting Linux (due to IPIs
failing). This change adds v2.07 semantics.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Wed, 17 Apr 2024 04:50:13 +0000 (14:50 +1000)]
ppc/pnv: Implement ADU access to LPC space
One of the functions of the ADU is indirect memory access engines that
send and receive data via ADU registers.
This implements the ADU LPC memory access functionality sufficiently
for IBM proprietary firmware to access the UART and print characters
to the serial port as it does on real hardware.
This requires a linkage between adu and lpc, which allows adu to
perform memory access in the lpc space.
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Fri, 23 Feb 2024 12:34:56 +0000 (22:34 +1000)]
ppc/pnv: Begin a more complete ADU LPC model for POWER9/10
This implements a framework for an ADU unit model.
The ADU unit actually implements XSCOM, which is the bridge between MMIO
and PIB. However it also includes control and status registers and other
functions that are exposed as PIB (xscom) registers.
To keep things simple, pnv_xscom.c remains the XSCOM bridge
implementation, and pnv_adu.c implements the ADU registers and other
functions.
So far, just the ADU no-op registers in the pnv_xscom.c default handler
are moved over to the adu model.
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Fri, 10 May 2024 07:10:40 +0000 (17:10 +1000)]
ppc/pnv: Implement POWER9 LPC PSI serirq outputs and auto-clear function
The POWER8 LPC ISA device irqs all get combined and reported to the line
connected the PSI LPCHC irq. POWER9 changed this so only internal LPC
host controller irqs use that line, and the device irqs get routed to
4 new lines connected to PSI SERIRQ0-3.
POWER9 also introduced a new feature that automatically clears the irq
status in the LPC host controller when EOI'ed, so software does not have
to.
The powernv OPAL (skiboot) firmware managed to work because the LPCHC
irq handler scanned all LPC irqs and handled those including clearing
status even on POWER9 systems. So LPC irqs worked despite OPAL thinking
it was running in POWER9 mode. After this change, UART interrupts show
up on serirq1 which is where OPAL routes them to:
cat /proc/interrupts
...
20: 0 XIVE-IRQ
1048563 Level opal-psi#0:lpchc
...
25: 34 XIVE-IRQ
1048568 Level opal-psi#0:lpc_serirq_mux1
Whereas they previously turn up on lpchc.
Reviewed-by: Glenn Miles <milesg@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Glenn Miles [Fri, 24 May 2024 18:24:14 +0000 (13:24 -0500)]
ppc/pnv: Fix loss of LPC SERIRQ interrupts
The LPC HC irq status register bits are set when an LPC IRQSER input is
asserted. These irq status bits drive the PSI irq to the CPU interrupt
controller. The LPC HC irq status bits are cleared by software writing
to the register with 1's for the bits to clear.
Existing register write was clearing the irq status bits even when the
input was asserted, this results in interrupts being lost.
This fix changes the behavior to keep track of the device IRQ status
in internal state that is separate from the irq status register, and
only allowing the irq status bits to be cleared if the associated
input is not asserted.
Signed-off-by: Glenn Miles <milesg@linux.ibm.com>
[np: rebased before P9 PSI SERIRQ patch, adjust changelog/comments]
Reviewed-by: Glenn Miles <milesg@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Aditya Gupta [Thu, 2 May 2024 06:27:01 +0000 (11:57 +0530)]
ppc/pnv: Update Power10's cfam id to use Power10 DD2
Power10 DD1.0 was dropped in:
commit
8f054d9ee825 ("ppc: Drop support for POWER9 and POWER10 DD1 chips")
Use the newer Power10 DD2 chips cfam id.
Signed-off-by: Aditya Gupta <adityag@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Shivaprasad G Bhat [Wed, 5 Jun 2024 15:58:22 +0000 (15:58 +0000)]
target/ppc/cpu_init: Synchronize HASHPKEYR with KVM for migration
The patch enables HASHPKEYR migration by hooking with the
"KVM one reg" ID KVM_REG_PPC_HASHPKEYR.
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Shivaprasad G Bhat [Wed, 5 Jun 2024 15:58:12 +0000 (15:58 +0000)]
target/ppc/cpu_init: Synchronize HASHKEYR with KVM for migration
The patch enables HASHKEYR migration by hooking with the
"KVM one reg" ID KVM_REG_PPC_HASHKEYR.
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Shivaprasad G Bhat [Wed, 5 Jun 2024 15:58:02 +0000 (15:58 +0000)]
target/ppc/cpu_init: Synchronize DEXCR with KVM for migration
The patch enables DEXCR migration by hooking with the
"KVM one reg" ID KVM_REG_PPC_DEXCR.
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Shivaprasad G Bhat [Wed, 5 Jun 2024 15:57:52 +0000 (15:57 +0000)]
linux-header: PPC: KVM: Update one-reg ids for DEXCR, HASHKEYR and HASHPKEYR
This is a placeholder change for these SPRs until the full linux
header update.
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Omar Sandoval [Fri, 19 Jul 2024 18:39:05 +0000 (11:39 -0700)]
target/ppc/arch_dump: set prstatus pid to cpuid
Every other architecture does this, and debuggers need it to be able to
identify which prstatus note corresponds to which CPU.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Omar Sandoval <osandov@osandov.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Harsh Prateek Bora [Tue, 18 Jun 2024 08:23:54 +0000 (13:53 +0530)]
target/ppc: handle vcpu hotplug failure gracefully
On ppc64, the PowerVM hypervisor runs with limited memory and a VCPU
creation during hotplug may fail during kvm_ioctl for KVM_CREATE_VCPU,
leading to termination of guest since errp is set to &error_fatal while
calling kvm_init_vcpu. This unexpected behaviour can be avoided by
pre-creating and parking vcpu on success or return error otherwise.
This enables graceful error delivery for any vcpu hotplug failures while
the guest can keep running.
Also introducing KVM AccelCPUClass to init cpu_target_realize for kvm.
Tested OK by repeatedly doing a hotplug/unplug of vcpus as below:
#virsh setvcpus hotplug 40
#virsh setvcpus hotplug 70
error: internal error: unable to execute QEMU command 'device_add':
kvmppc_cpu_realize: vcpu hotplug failed with -12
Signed-off by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Reported-by: Anushree Mathur <anushree.mathur@linux.vnet.ibm.com>
Suggested-by: Shivaprasad G Bhat <sbhat@linux.ibm.com>
Suggested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Tested-by: Anushree Mathur <anushree.mathur@linux.vnet.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Harsh Prateek Bora [Tue, 18 Jun 2024 08:23:53 +0000 (13:53 +0530)]
cpu-common.c: export cpu_get_free_index to be reused later
This helper provides an easy way to identify the next available free cpu
index which can be used for vcpu creation. Until now, this is being
called at a very later stage and there is a need to be able to call it
earlier (for now, with ppc64) hence the need to export.
Suggested-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Harsh Prateek Bora [Tue, 18 Jun 2024 08:23:52 +0000 (13:53 +0530)]
accel/kvm: Introduce kvm_create_and_park_vcpu() helper
There are distinct helpers for creating and parking a KVM vCPU.
However, there can be cases where a platform needs to create and
immediately park the vCPU during early stages of vcpu init which
can later be reused when vcpu thread gets initialized. This would
help detect failures with kvm_create_vcpu at an early stage.
Suggested-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Akihiko Odaki [Mon, 8 Jul 2024 06:55:13 +0000 (15:55 +0900)]
ppc/vof: Fix unaligned FDT property access
FDT properties are aligned by 4 bytes, not 8 bytes.
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Akihiko Odaki [Mon, 8 Jul 2024 06:55:12 +0000 (15:55 +0900)]
spapr: Free stdout path
This fixes LeakSanitizer warnings.
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Mon, 6 May 2024 11:56:05 +0000 (21:56 +1000)]
spapr: Migrate ail-mode-3 spapr cap
This cap did not add the migration code when it was introduced. This
results in migration failure when changing the default using the
command line.
Cc: qemu-stable@nongnu.org
Fixes: ccc5a4c5e10 ("spapr: Add SPAPR_CAP_AIL_MODE_3 for AIL mode 3 support for H_SET_MODE hcall")
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Nicholas Piggin [Thu, 25 Jul 2024 14:50:31 +0000 (00:50 +1000)]
tests/tcg: Skip failing ppc64 multi-threaded tests
In Gitlab CI, some ppc64 multi-threaded tcg tests crash when run in the
clang-user job with an assertion failure in glibc that seems to
indicate corruption:
signals: allocatestack.c:223: allocate_stack:
Assertion `powerof2 (pagesize_m1 + 1)' failed.
Disable these tests for now.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Richard Henderson [Wed, 24 Jul 2024 23:53:57 +0000 (09:53 +1000)]
Merge tag 'bsd-user-for-9.1-pull-request' of gitlab.com:bsdimp/qemu into staging
bsd-user: Misc changes for 9.1 (I hope)
V2: Add missing bsd-user/aarch64/target.h
This patch series includes two main sets of patches. To make it simple to
review, I've included the changes from my student which the later changes depend
on. I've included a change from Jessica and Doug as well. I've reviewed them,
but more eyes never hurt.
I've also included a number of 'touch up' patches needed either to get the
aarch64 building, or to implmement suggestions from prior review cycles. The
main one is what's charitably described as a kludge: force aarch64 to use 4k
pages. The qemu-project (and blitz branch) hasn't had the necessary changes to
bsd-user needed to support variable page size.
Sorry this is so late... Live has conspired to delay me.
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# Comment: GPGTools - https://gpgtools.org
#
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# gpg: Signature made Thu 25 Jul 2024 08:03:40 AM AEST
# gpg: using RSA key
2035F894B00AA3CF7CCDE1B76C1CD1287DB01100
# gpg: Good signature from "Warner Losh <wlosh@netflix.com>" [unknown]
# gpg: aka "Warner Losh <imp@bsdimp.com>" [unknown]
# gpg: aka "Warner Losh <imp@freebsd.org>" [unknown]
# gpg: aka "Warner Losh <imp@village.org>" [unknown]
# gpg: aka "Warner Losh <wlosh@bsdimp.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 2035 F894 B00A A3CF 7CCD E1B7 6C1C D128 7DB0 1100
* tag 'bsd-user-for-9.1-pull-request' of gitlab.com:bsdimp/qemu:
bsd-user: Add target.h for aarch64.
bsd-user: Add aarch64 build to tree
bsd-user: Make compile for non-linux user-mode stuff
bsd-user: Define TARGET_SIGSTACK_ALIGN and use it to round stack
bsd-user: Sync fork_start/fork_end with linux-user
bsd-user: Hard wire aarch64 to be 4k pages only
bsd-user: Simplify the implementation of execve
bsd-user:Add AArch64 improvements and signal handling functions
bsd-user:Add set_mcontext function for ARM AArch64
bsd-user:Add setup_sigframe_arch function for ARM AArch64
bsd-user:Add get_mcontext function for ARM AArch64
bsd-user:Add ARM AArch64 signal handling support
bsd-user:Add ARM AArch64 support and capabilities
bsd-user:Add AArch64 register handling and related functions
bsd-user:Add CPU initialization and management functions
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Warner Losh [Wed, 24 Jul 2024 21:57:44 +0000 (15:57 -0600)]
bsd-user: Add target.h for aarch64.
For aarch64, it's a 64-bit API, so there's no pairing of registers for
64-bit values.
Signed-off-by: Warner Losh <imp@bsdimp.com>
Richard Henderson [Wed, 24 Jul 2024 11:35:10 +0000 (21:35 +1000)]
Merge tag 'misc-fixes-pull-request' of https://gitlab.com/berrange/qemu into staging
Crypto patches
* Drop unused 'detached-header' QAPI field from LUKS create options
* Improve tracing of TLS sockets and TLS chardevs
* Improve error messages from TLS I/O failures
* Add docs about use of LUKS detached header options
* Allow building without libtasn1, but with GNUTLS
* Fix detection of libgcrypt when libgcrypt-config is absent
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# DKg84ovRtq3yZIw8LPoUJOtbcu4Y7BSGwlolQjWegvsVTU6Bdk+teZVR9X64QbM2
# YBXzMkRHUKzR3rb0LewAKehP3n93aBypLln9ZMgg7wj92Rj8Dl/sylaBhDEkH/HQ
# 2pMdSdAWqMnGHfnKPxyjflNO2PIsOenZUkDZwf9i7Ow6fU5n3fqvudVDTWjXpWPn
# V7v9JGNPHocScJFRUqHSVqd2ZWaZX4F1TsvG6SGOmzDGR0IjBRlqos7OEdbAAH1x
# IglizbTxD6M9ZWJrGt1sl6LSAwEp3oXgsWNdejq2+7I6H4BeUm4ACDbdrEjqG9aG
# Ya/HpNT0PEzbGXm6qsuHY5z0agGtaPwdXLcSGnsv+a0rP/9nthY=
# =ccYf
# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 24 Jul 2024 07:46:29 PM AEST
# gpg: using RSA key
DAF3A6FDB26B62912D0E8E3FBE86EBB415104FDF
# gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>" [full]
# gpg: aka "Daniel P. Berrange <berrange@redhat.com>" [full]
* tag 'misc-fixes-pull-request' of https://gitlab.com/berrange/qemu:
crypto: propagate errors from TLS session I/O callbacks
crypto: push error reporting into TLS session I/O APIs
crypto: drop gnutls debug logging support
chardev: add tracing of socket error conditions
meson: build chardev trace files when have_block
qapi: drop unused QCryptoBlockCreateOptionsLUKS.detached-header
meson.build: fix libgcrypt detection on system without libgcrypt-config
docs/devel: Add introduction to LUKS volume with detached header
crypto: Allow building with GnuTLS but without Libtasn1
crypto: Restrict pkix_asn1_tab[] to crypto-tls-x509-helpers.c
crypto: Remove 'crypto-tls-x509-helpers.h' from crypto-tls-psk-helpers.c
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Daniel P. Berrangé [Fri, 15 Mar 2024 14:29:11 +0000 (14:29 +0000)]
crypto: propagate errors from TLS session I/O callbacks
GNUTLS doesn't know how to perform I/O on anything other than plain
FDs, so the TLS session provides it with some I/O callbacks. The
GNUTLS API design requires these callbacks to return a unix errno
value, which means we're currently loosing the useful QEMU "Error"
object.
This changes the I/O callbacks in QEMU to stash the "Error" object
in the QCryptoTLSSession class, and fetch it when seeing an I/O
error returned from GNUTLS, thus preserving useful error messages.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Daniel P. Berrangé [Fri, 15 Mar 2024 14:07:58 +0000 (14:07 +0000)]
crypto: push error reporting into TLS session I/O APIs
The current TLS session I/O APIs just return a synthetic errno
value on error, which has been translated from a gnutls error
value. This looses a large amount of valuable information that
distinguishes different scenarios.
Pushing population of the "Error *errp" object into the TLS
session I/O APIs gives more detailed error information.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Daniel P. Berrangé [Fri, 15 Mar 2024 13:54:52 +0000 (13:54 +0000)]
crypto: drop gnutls debug logging support
GNUTLS already supports dynamically enabling its logging at runtime by
setting the env var 'GNUTLS_DEBUG_LEVEL=10', so there is no need to
re-invent this logic in QEMU in a way that requires a re-compile.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Daniel P. Berrangé [Fri, 15 Mar 2024 13:04:44 +0000 (13:04 +0000)]
chardev: add tracing of socket error conditions
This adds trace points to every error scenario in the chardev socket
backend that can lead to termination of the connection.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Daniel P. Berrangé [Tue, 23 Jul 2024 10:31:24 +0000 (11:31 +0100)]
meson: build chardev trace files when have_block
The QSD depends on chardev code, and is built when have_tools is
true. This means conditionalizing chardev trace on have_system
is wrong, we need have_block which is set have_system || have_tools.
This latent bug was historically harmless because only the spice
chardev included tracing, which wasn't built in a !have_system
scenario.
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Daniel P. Berrangé [Mon, 19 Feb 2024 15:12:59 +0000 (15:12 +0000)]
qapi: drop unused QCryptoBlockCreateOptionsLUKS.detached-header
The 'detached-header' field in QCryptoBlockCreateOptionsLUKS
was left over from earlier patch iterations.
Acked-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Yao Zi [Sat, 6 Jul 2024 20:12:26 +0000 (20:12 +0000)]
meson.build: fix libgcrypt detection on system without libgcrypt-config
libgcrypt starts providing correct pkg-config configuration since 1.9,
in parallel with libgcrypt-config. Since 1.11 it may also stop
installing libgcrypt-config in some scenarios. Use the auto method for
detection of libgcrypt, in which meson will try both pkg-config and
libgcrypt-config.
Auto method for libgcrypt is supported by meson since 0.49.0, which is
higher than the version qemu requires.
Signed-off-by: Yao Zi <ziyao@disroot.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Hyman Huang [Mon, 19 Feb 2024 16:04:42 +0000 (00:04 +0800)]
docs/devel: Add introduction to LUKS volume with detached header
Signed-off-by: Hyman Huang <yong.huang@smartx.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Philippe Mathieu-Daudé [Thu, 2 May 2024 09:56:42 +0000 (11:56 +0200)]
crypto: Allow building with GnuTLS but without Libtasn1
We only use Libtasn1 in unit tests. As noted in commit
d47b83b118
("tests: add migration tests of TLS with x509 credentials"), having
GnuTLS without Libtasn1 is a valid configuration, so do not require
Libtasn1, to avoid:
Dependency gnutls found: YES 3.7.1 (cached)
Run-time dependency libtasn1 found: NO (tried pkgconfig)
../meson.build:1914:10: ERROR: Dependency "libtasn1" not found, tried pkgconfig
Fixes: ba7ed407e6 ("configure, meson: convert libtasn1 detection to meson")
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Philippe Mathieu-Daudé [Thu, 2 May 2024 09:56:41 +0000 (11:56 +0200)]
crypto: Restrict pkix_asn1_tab[] to crypto-tls-x509-helpers.c
pkix_asn1_tab[] is only accessed by crypto-tls-x509-helpers.c,
rename pkix_asn1_tab.c as pkix_asn1_tab.c.inc and include it once.
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
[berrange: updated MAINTAINERS for changed filename]
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Philippe Mathieu-Daudé [Thu, 2 May 2024 09:56:40 +0000 (11:56 +0200)]
crypto: Remove 'crypto-tls-x509-helpers.h' from crypto-tls-psk-helpers.c
crypto-tls-psk-helpers.c doesn't access the declarations
of "crypto-tls-x509-helpers.h", remove the include line
to avoid when building with GNUTLS but without Libtasn1:
In file included from tests/unit/crypto-tls-psk-helpers.c:23:
tests/unit/crypto-tls-x509-helpers.h:26:10: fatal error:
libtasn1.h: No such file or directory
26 | #include <libtasn1.h>
| ^~~~~~~~~~~~
compilation terminated.
Fixes: e1a6dc91dd ("crypto: Implement TLS Pre-Shared Keys (PSK).")
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Richard Henderson [Wed, 24 Jul 2024 09:10:58 +0000 (19:10 +1000)]
Merge tag 'pull-loongarch-
20240724' of https://gitlab.com/gaosong/qemu into staging
Fix for 9.1
# -----BEGIN PGP SIGNATURE-----
#
# iLMEAAEKAB0WIQS4/x2g0v3LLaCcbCxAov/yOSY+3wUCZqDBEQAKCRBAov/yOSY+
# 3/3nA/9xWl3qkj95WmBICIi/K9doeA54k1h4d7g/K8+UHV+hDIlEDoidgesJSveH
# RmnE6wmJTb6QhT4IQrO5ERwE5U5DqINDhxAcX5GLfBjEtTFbLCYqEaKlN8pNh6MR
# Qki+SGKSa50kxAMgcB6vkld9uTIWczXzMTb3IxGCWs4VKPhJYw==
# =y//7
# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 24 Jul 2024 06:53:37 PM AEST
# gpg: using RSA key
B8FF1DA0D2FDCB2DA09C6C2C40A2FFF239263EDF
# gpg: Good signature from "Song Gao <m17746591750@163.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: B8FF 1DA0 D2FD CB2D A09C 6C2C 40A2 FFF2 3926 3EDF
* tag 'pull-loongarch-
20240724' of https://gitlab.com/gaosong/qemu:
target/loongarch: Fix helper_lddir() a CID INTEGER_OVERFLOW issue
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Song Gao [Wed, 24 Jul 2024 01:58:53 +0000 (09:58 +0800)]
target/loongarch: Fix helper_lddir() a CID INTEGER_OVERFLOW issue
When the lddir level is 4 and the base is a HugePage, we may try to put value 4
into a field in the TLBENTRY that is only 2 bits wide.
Fixes: Coverity CID 1547717
Fixes: 9c70db9a43388 ("target/loongarch: Fix tlb huge page loading issue")
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <
20240724015853.
1317396-1-gaosong@loongson.cn>
Richard Henderson [Wed, 24 Jul 2024 05:39:43 +0000 (15:39 +1000)]
Merge tag 'hw-misc-
20240723' of https://github.com/philmd/qemu into staging
Misc HW patch queue
- Restrict probe_access*() functions to TCG (Phil)
- Extract do_invalidate_device_tlb from vtd_process_device_iotlb_desc (Clément)
- Fixes in Loongson IPI model (Bibo & Phil)
- Make docs/interop/firmware.json compatible with qapi-gen.py script (Thomas)
- Correct MPC I2C MMIO region size (Zoltan)
- Remove useless cast in Loongson3 Virt machine (Yao)
- Various uses of range overlap API (Yao)
- Use ERRP_GUARD macro in nubus_virtio_mmio_realize (Zhao)
- Use DMA memory API in Goldfish UART model (Phil)
- Expose fifo8_pop_buf and introduce fifo8_drop (Phil)
- MAINTAINERS updates (Zhao, Phil)
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# gpg: Signature made Wed 24 Jul 2024 06:36:47 AM AEST
# gpg: using RSA key
FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
* tag 'hw-misc-
20240723' of https://github.com/philmd/qemu: (28 commits)
MAINTAINERS: Add myself as a reviewer of machine core
MAINTAINERS: Cover guest-agent in QAPI schema
util/fifo8: Introduce fifo8_drop()
util/fifo8: Expose fifo8_pop_buf()
util/fifo8: Rename fifo8_pop_buf() -> fifo8_pop_bufptr()
util/fifo8: Rename fifo8_peek_buf() -> fifo8_peek_bufptr()
util/fifo8: Use fifo8_reset() in fifo8_create()
util/fifo8: Fix style
chardev/char-fe: Document returned value on error
hw/char/goldfish: Use DMA memory API
hw/nubus/virtio-mmio: Fix missing ERRP_GUARD() in realize handler
dump: make range overlap check more readable
crypto/block-luks: make range overlap check more readable
system/memory_mapping: make range overlap check more readable
sparc/ldst_helper: make range overlap check more readable
cxl/mailbox: make range overlap check more readable
util/range: Make ranges_overlap() return bool
hw/mips/loongson3_virt: remove useless type cast
hw/i2c/mpc_i2c: Fix mmio region size
docs/interop/firmware.json: convert "Example" section
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Richard Henderson [Wed, 24 Jul 2024 02:58:46 +0000 (12:58 +1000)]
Merge tag 'pull-vfio-
20240723-1' of https://github.com/legoater/qemu into staging
vfio queue:
* IOMMUFD Dirty Tracking support
* Fix for a possible SEGV in IOMMU type1 container
* Dropped initialization of host IOMMU device with mdev devices
# -----BEGIN PGP SIGNATURE-----
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# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 24 Jul 2024 01:16:37 AM AEST
# gpg: using RSA key
A0F66548F04895EBFE6B0B6051A343C7CFFBECA1
# gpg: Good signature from "Cédric Le Goater <clg@kaod.org>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: A0F6 6548 F048 95EB FE6B 0B60 51A3 43C7 CFFB ECA1
* tag 'pull-vfio-
20240723-1' of https://github.com/legoater/qemu:
vfio/common: Allow disabling device dirty page tracking
vfio/migration: Don't block migration device dirty tracking is unsupported
vfio/iommufd: Implement VFIOIOMMUClass::query_dirty_bitmap support
vfio/iommufd: Implement VFIOIOMMUClass::set_dirty_tracking support
vfio/iommufd: Probe and request hwpt dirty tracking capability
vfio/{iommufd, container}: Invoke HostIOMMUDevice::realize() during attach_device()
vfio/iommufd: Add hw_caps field to HostIOMMUDeviceCaps
vfio/{iommufd,container}: Remove caps::aw_bits
vfio/iommufd: Introduce auto domain creation
vfio/ccw: Don't initialize HOST_IOMMU_DEVICE with mdev
vfio/ap: Don't initialize HOST_IOMMU_DEVICE with mdev
vfio/iommufd: Return errno in iommufd_cdev_attach_ioas_hwpt()
backends/iommufd: Extend iommufd_backend_get_device_info() to fetch HW capabilities
vfio/iommufd: Don't initialize nor set a HOST_IOMMU_DEVICE with mdev
vfio/pci: Extract mdev check into an helper
hw/vfio/container: Fix SIGSEV on vfio_container_instance_finalize()
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Richard Henderson [Wed, 24 Jul 2024 01:25:40 +0000 (11:25 +1000)]
Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
* target/i386/kvm: support for reading RAPL MSRs using a helper program
* hpet: emulation improvements
# -----BEGIN PGP SIGNATURE-----
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# =00mB
# -----END PGP SIGNATURE-----
# gpg: Signature made Tue 23 Jul 2024 03:19:58 AM AEST
# gpg: using RSA key
F13338574B662389866C7682BFFBD25F78C7AE83
# gpg: issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
hpet: avoid timer storms on periodic timers
hpet: store full 64-bit target value of the counter
hpet: accept 64-bit reads and writes
hpet: place read-only bits directly in "new_val"
hpet: remove unnecessary variable "index"
hpet: ignore high bits of comparator in 32-bit mode
hpet: fix and cleanup persistence of interrupt status
Add support for RAPL MSRs in KVM/Qemu
tools: build qemu-vmsr-helper
qio: add support for SO_PEERCRED for socket channel
target/i386: do not crash if microvm guest uses SGX CPUID leaves
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Richard Henderson [Tue, 23 Jul 2024 23:32:04 +0000 (09:32 +1000)]
Merge tag 'for_upstream' of https://git./virt/kvm/mst/qemu into staging
virtio,pci,pc: features,fixes
pci: Initial support for SPDM Responders
cxl: Add support for scan media, feature commands, device patrol scrub
control, DDR5 ECS control, firmware updates
virtio: in-order support
virtio-net: support for SR-IOV emulation (note: known issues on s390,
might get reverted if not fixed)
smbios: memory device size is now configurable per Machine
cpu: architecture agnostic code to support vCPU Hotplug
Fixes, cleanups all over the place.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# -----BEGIN PGP SIGNATURE-----
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# =k8e9
# -----END PGP SIGNATURE-----
# gpg: Signature made Tue 23 Jul 2024 10:16:31 AM AEST
# gpg: using RSA key
5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg: issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [undefined]
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>" [undefined]
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67
# Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469
* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (61 commits)
hw/nvme: Add SPDM over DOE support
backends: Initial support for SPDM socket support
hw/pci: Add all Data Object Types defined in PCIe r6.0
tests/acpi: Add expected ACPI AML files for RISC-V
tests/qtest/bios-tables-test.c: Enable basic testing for RISC-V
tests/acpi: Add empty ACPI data files for RISC-V
tests/qtest/bios-tables-test.c: Remove the fall back path
tests/acpi: update expected DSDT blob for aarch64 and microvm
acpi/gpex: Create PCI link devices outside PCI root bridge
tests/acpi: Allow DSDT acpi table changes for aarch64
hw/riscv/virt-acpi-build.c: Update the HID of RISC-V UART
hw/riscv/virt-acpi-build.c: Add namespace devices for PLIC and APLIC
virtio-iommu: Add trace point on virtio_iommu_detach_endpoint_from_domain
hw/vfio/common: Add vfio_listener_region_del_iommu trace event
virtio-iommu: Remove the end point on detach
virtio-iommu: Free [host_]resv_ranges on unset_iommu_devices
virtio-iommu: Remove probe_done
Revert "virtio-iommu: Clear IOMMUDevice when VFIO device is unplugged"
gdbstub: Add helper function to unregister GDB register space
physmem: Add helper function to destroy CPU AddressSpace
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Zhao Liu [Mon, 22 Jul 2024 16:44:12 +0000 (00:44 +0800)]
MAINTAINERS: Add myself as a reviewer of machine core
While working on a series of CPU/cache topology work, I became
interested in the machine core component and would like to help to
review more related patches.
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <
20240722164412.
1163414-1-zhao1.liu@intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Philippe Mathieu-Daudé [Wed, 17 Jul 2024 13:58:28 +0000 (15:58 +0200)]
MAINTAINERS: Cover guest-agent in QAPI schema
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <
20240717140025.66397-1-philmd@linaro.org>
Philippe Mathieu-Daudé [Mon, 22 Jul 2024 11:37:48 +0000 (13:37 +0200)]
util/fifo8: Introduce fifo8_drop()
Add the fifo8_drop() helper for clarity.
It is a simple wrapper over fifo8_pop_buf().
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <
20240722160745.67904-8-philmd@linaro.org>
Philippe Mathieu-Daudé [Mon, 22 Jul 2024 11:27:53 +0000 (13:27 +0200)]
util/fifo8: Expose fifo8_pop_buf()
Extract fifo8_pop_buf() from hw/scsi/esp.c and expose
it as part of the <qemu/fifo8.h> API. This function takes
care of non-contiguous (wrapped) FIFO buffer (which is an
implementation detail).
Suggested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <
20240722160745.67904-7-philmd@linaro.org>
Philippe Mathieu-Daudé [Mon, 22 Jul 2024 11:25:01 +0000 (13:25 +0200)]
util/fifo8: Rename fifo8_pop_buf() -> fifo8_pop_bufptr()
Since fifo8_pop_buf() return a const buffer (which points
directly into the FIFO backing store). Rename it using the
'bufptr' suffix to better reflect that it is a pointer to
the internal buffer that is being returned. This will help
differentiate with methods *copying* the FIFO data.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <
20240722160745.67904-6-philmd@linaro.org>
Philippe Mathieu-Daudé [Mon, 22 Jul 2024 11:21:44 +0000 (13:21 +0200)]
util/fifo8: Rename fifo8_peek_buf() -> fifo8_peek_bufptr()
Since fifo8_peek_buf() return a const buffer (which points
directly into the FIFO backing store). Rename it using the
'bufptr' suffix to better reflect that it is a pointer to
the internal buffer that is being returned. This will help
differentiate with methods *copying* the FIFO data.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <
20240722160745.67904-5-philmd@linaro.org>
Philippe Mathieu-Daudé [Fri, 10 Nov 2023 06:11:32 +0000 (07:11 +0100)]
util/fifo8: Use fifo8_reset() in fifo8_create()
Avoid open-coding fifo8_reset() in fifo8_create().
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <
20240722160745.67904-4-philmd@linaro.org>
Philippe Mathieu-Daudé [Mon, 22 Jul 2024 12:15:31 +0000 (14:15 +0200)]
util/fifo8: Fix style
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <
20240722160745.67904-3-philmd@linaro.org>