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arm64: compat: Workaround Neoverse-N1 #1542419 for compat user-space
authorJames Morse <james.morse@arm.com>
Thu, 17 Oct 2019 17:43:00 +0000 (18:43 +0100)
committerCatalin Marinas <catalin.marinas@arm.com>
Fri, 25 Oct 2019 16:48:44 +0000 (17:48 +0100)
commit222fc0c8503d98cec3cb2bac2780cdd21a6e31c0
treed98f429a05372715a4a22aa37d9df75e9f8715d5tree | snapshot
parentee9d90be9ddace01b7fb126567e4b539fbe1f82fcommit | diff
arm64: compat: Workaround Neoverse-N1 #1542419 for compat user-space

Compat user-space is unable to perform ICIMVAU instructions from
user-space. Instead it uses a compat-syscall. Add the workaround for
Neoverse-N1 #1542419 to this code path.

Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arch/arm64/kernel/sys_compat.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git