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(parent: e82f206) | patch
x86/hyperv: Initialize GHCB page in Isolation VM
authorTianyu Lan <Tianyu.Lan@microsoft.com>
Mon, 25 Oct 2021 12:21:06 +0000 (08:21 -0400)
committerWei Liu <wei.liu@kernel.org>
Thu, 28 Oct 2021 10:47:52 +0000 (10:47 +0000)
commit0cc4f6d9f0b9f20f3f1e1149bdb6737c0b4e134a
tree6b38683b18f98bd2a5950149d5d2d29793833cdbtree | snapshot
parente82f2069b52fb350f4ea568957dcc5c9f3649999commit | diff
x86/hyperv: Initialize GHCB page in Isolation VM

Hyperv exposes GHCB page via SEV ES GHCB MSR for SNP guest
to communicate with hypervisor. Map GHCB page for all
cpus to read/write MSR register and submit hvcall request
via ghcb page.

Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com>
Link: https://lore.kernel.org/r/20211025122116.264793-2-ltykernel@gmail.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
arch/x86/hyperv/hv_init.c diff | blob | history
arch/x86/include/asm/mshyperv.h diff | blob | history
arch/x86/kernel/cpu/mshyperv.c diff | blob | history
include/asm-generic/mshyperv.h diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git