diff options
| author | Oliver Upton <oupton@kernel.org> | 2025-11-24 11:01:48 -0800 |
|---|---|---|
| committer | Oliver Upton <oupton@kernel.org> | 2025-12-01 00:44:01 -0800 |
| commit | cdba9da34b145eb2f3c502279a454f9a1a8346c1 (patch) | |
| tree | be021dd755a1eb08b59652bc1a55a1facd436ef4 | |
| parent | 692650bd7b12532798c2022cb53869a07a288fbe (diff) | |
KVM: arm64: Call helper for reading descriptors directly
Going through a function pointer doesn't serve much purpose when there's
only one implementation.
Reviewed-by: Marc Zyngier <maz@kernel.org>
Tested-by: Marc Zyngier <maz@kernel.org>
Link: https://msgid.link/20251124190158.177318-7-oupton@kernel.org
Signed-off-by: Oliver Upton <oupton@kernel.org>
| -rw-r--r-- | arch/arm64/kvm/nested.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c index 08839a320a45..e4928a6a3672 100644 --- a/arch/arm64/kvm/nested.c +++ b/arch/arm64/kvm/nested.c @@ -124,7 +124,6 @@ int kvm_vcpu_init_nested(struct kvm_vcpu *vcpu) } struct s2_walk_info { - int (*read_desc)(phys_addr_t pa, u64 *desc, void *data); void *data; u64 baddr; unsigned int max_oa_bits; @@ -199,6 +198,13 @@ static int check_output_size(struct s2_walk_info *wi, phys_addr_t output) return 0; } +static int read_guest_s2_desc(phys_addr_t pa, u64 *desc, void *data) +{ + struct kvm_vcpu *vcpu = data; + + return kvm_read_guest(vcpu->kvm, pa, desc, sizeof(*desc)); +} + /* * This is essentially a C-version of the pseudo code from the ARM ARM * AArch64.TranslationTableWalk function. I strongly recommend looking at @@ -257,7 +263,7 @@ static int walk_nested_s2_pgd(phys_addr_t ipa, >> (addr_bottom - 3); paddr = base_addr | index; - ret = wi->read_desc(paddr, &desc, wi->data); + ret = read_guest_s2_desc(paddr, &desc, wi->data); if (ret < 0) return ret; @@ -325,13 +331,6 @@ static int walk_nested_s2_pgd(phys_addr_t ipa, return 0; } -static int read_guest_s2_desc(phys_addr_t pa, u64 *desc, void *data) -{ - struct kvm_vcpu *vcpu = data; - - return kvm_read_guest(vcpu->kvm, pa, desc, sizeof(*desc)); -} - static void vtcr_to_walk_info(u64 vtcr, struct s2_walk_info *wi) { wi->t0sz = vtcr & TCR_EL2_T0SZ_MASK; @@ -364,7 +363,6 @@ int kvm_walk_nested_s2(struct kvm_vcpu *vcpu, phys_addr_t gipa, if (!vcpu_has_nv(vcpu)) return 0; - wi.read_desc = read_guest_s2_desc; wi.data = vcpu; wi.baddr = vcpu_read_sys_reg(vcpu, VTTBR_EL2); |