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| author | Andrew Scull <ascull@google.com> | 2020-09-15 11:46:29 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-09-15 18:39:02 +0100 |
| commit | a0e479523e3fb4fa52c351cc4906f38097de789a (patch) | |
| tree | 86b3fcf0c984652765e85c0ca027c6cdcfeae2e8 /arch/arm64/include/asm/kvm_hyp.h | |
| parent | ceee2fe4ba1f0b9dd388fd1030bea0162ca66a40 (diff) | |
| download | linux-a0e479523e3fb4fa52c351cc4906f38097de789a.tar.bz2 | |
KVM: arm64: Save chosen hyp vector to a percpu variable
Introduce a percpu variable to hold the address of the selected hyp
vector that will be used with guests. This avoids the selection process
each time a guest is being entered and can be used by nVHE when a
separate vector is introduced for the host.
Signed-off-by: Andrew Scull <ascull@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200915104643.2543892-6-ascull@google.com
Diffstat (limited to 'arch/arm64/include/asm/kvm_hyp.h')
| -rw-r--r-- | arch/arm64/include/asm/kvm_hyp.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h index 3de99b323061..1e2491da324e 100644 --- a/arch/arm64/include/asm/kvm_hyp.h +++ b/arch/arm64/include/asm/kvm_hyp.h @@ -12,6 +12,8 @@ #include <asm/alternative.h> #include <asm/sysreg.h> +DECLARE_PER_CPU(unsigned long, kvm_hyp_vector); + #define read_sysreg_elx(r,nvh,vh) \ ({ \ u64 reg; \ |