raspi/linux
1
0
Fork 1
mirror of https://github.com/raspberrypi/linux.git synced 2026-01-03 08:14:12 +00:00
Code Issues Projects Releases Wiki Activity

KVM: arm64: Add a predicate for testing if SMCCC filter is configured

Browse Source 
Eventually we can drop the VM flag, move around the existing
implementation for now.

Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20231004234947.207507-2-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
This commit is contained in:
Oliver Upton
2023-10-04 23:49:45 +00:00
parent 6465e260f4
commit bb17fb31f0
1 changed files with 6 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
arch/arm64/kvm/hypercalls.c
View File

@@ -158,6 +158,11 @@ static void init_smccc_filter(struct kvm *kvm)
}
static bool kvm_smccc_filter_configured(struct kvm *kvm)
{
return test_bit(KVM_ARCH_FLAT_SMCCC_FILTER_CONFIGURED, &kvm->arch.flags);
}
static int kvm_smccc_set_filter(struct kvm *kvm, struct kvm_smccc_filter __user *uaddr)
{
const void *zero_page = page_to_virt(ZERO_PAGE(0));
@@ -201,7 +206,7 @@ static u8 kvm_smccc_filter_get_action(struct kvm *kvm, u32 func_id)
unsigned long idx = func_id;
void *val;
if (!test_bit(KVM_ARCH_FLAG_SMCCC_FILTER_CONFIGURED, &kvm->arch.flags))
if (!kvm_smccc_filter_configured(kvm))
return KVM_SMCCC_FILTER_HANDLE;
/*