From: Sean Christopherson <seanjc@google.com>
To: Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Kiryl Shutsemau <kas@kernel.org>,
David Woodhouse <dwmw2@infradead.org>,
Paul Durrant <paul@xen.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>,
Rick Edgecombe <rick.p.edgecombe@intel.com>,
kvm@vger.kernel.org, x86@kernel.org, linux-coco@lists.linux.dev,
linux-kernel@vger.kernel.org, Yosry Ahmed <yosry@kernel.org>,
Kai Huang <kai.huang@intel.com>,
Binbin Wu <binbin.wu@linux.intel.com>
Subject: [PATCH v2 11/15] Revert "KVM: VMX: Read 32-bit GPR values for ENCLS instructions outside of 64-bit mode"
Date: Thu, 14 May 2026 14:53:51 -0700 [thread overview]
Message-ID: <20260514215355.1648463-12-seanjc@google.com> (raw)
In-Reply-To: <20260514215355.1648463-1-seanjc@google.com>
Now that kvm_<reg>_read() are mode aware, i.e. are functionally equivalent
to kvm_register_read(), revert aback to the less verbose versions.
No functional change intended.
This reverts commit 60919eccf6764c71cef31a1afeaa1a36b8e5ab85.
Acked-by: Kai Huang <kai.huang@intel.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
---
arch/x86/kvm/vmx/sgx.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/x86/kvm/vmx/sgx.c b/arch/x86/kvm/vmx/sgx.c
index 2f5a1c58f3c5..876dc2814108 100644
--- a/arch/x86/kvm/vmx/sgx.c
+++ b/arch/x86/kvm/vmx/sgx.c
@@ -225,8 +225,8 @@ static int handle_encls_ecreate(struct kvm_vcpu *vcpu)
struct x86_exception ex;
int r;
- if (sgx_get_encls_gva(vcpu, kvm_register_read(vcpu, VCPU_REGS_RBX), 32, 32, &pageinfo_gva) ||
- sgx_get_encls_gva(vcpu, kvm_register_read(vcpu, VCPU_REGS_RCX), 4096, 4096, &secs_gva))
+ if (sgx_get_encls_gva(vcpu, kvm_rbx_read(vcpu), 32, 32, &pageinfo_gva) ||
+ sgx_get_encls_gva(vcpu, kvm_rcx_read(vcpu), 4096, 4096, &secs_gva))
return 1;
/*
@@ -302,9 +302,9 @@ static int handle_encls_einit(struct kvm_vcpu *vcpu)
gpa_t sig_gpa, secs_gpa, token_gpa;
int ret, trapnr;
- if (sgx_get_encls_gva(vcpu, kvm_register_read(vcpu, VCPU_REGS_RBX), 1808, 4096, &sig_gva) ||
- sgx_get_encls_gva(vcpu, kvm_register_read(vcpu, VCPU_REGS_RCX), 4096, 4096, &secs_gva) ||
- sgx_get_encls_gva(vcpu, kvm_register_read(vcpu, VCPU_REGS_RDX), 304, 512, &token_gva))
+ if (sgx_get_encls_gva(vcpu, kvm_rbx_read(vcpu), 1808, 4096, &sig_gva) ||
+ sgx_get_encls_gva(vcpu, kvm_rcx_read(vcpu), 4096, 4096, &secs_gva) ||
+ sgx_get_encls_gva(vcpu, kvm_rdx_read(vcpu), 304, 512, &token_gva))
return 1;
/*
--
2.54.0.563.g4f69b47b94-goog
next prev parent reply other threads:[~2026-05-14 21:54 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-14 21:53 [PATCH v2 00/15] KVM: x86: Clean up kvm_<reg>_{read,write}() mess Sean Christopherson
2026-05-14 21:53 ` [PATCH v2 01/15] KVM: SVM: Truncate INVLPGA address in compatibility mode Sean Christopherson
2026-05-14 21:53 ` [PATCH v2 02/15] KVM: x86/xen: Bug the VM if 32-bit KVM observes a 64-bit mode hypercall Sean Christopherson
2026-05-14 21:53 ` [PATCH v2 03/15] KVM: x86/xen: Don't truncate RAX when handling hypercall from protected guest Sean Christopherson
2026-05-14 21:53 ` [PATCH v2 04/15] KVM: VMX: Read 32-bit GPR values for ENCLS instructions outside of 64-bit mode Sean Christopherson
2026-05-14 21:53 ` [PATCH v2 05/15] KVM: x86: Trace hypercall register *after* truncating values for 32-bit Sean Christopherson
2026-05-14 21:53 ` [PATCH v2 06/15] KVM: x86: Rename kvm_cache_regs.h => regs.h Sean Christopherson
2026-05-14 22:28 ` Yosry Ahmed
2026-05-14 21:53 ` [PATCH v2 07/15] KVM: x86: Move inlined CR and DR helpers from x86.h to regs.h Sean Christopherson
2026-05-14 22:30 ` Yosry Ahmed
2026-05-14 21:53 ` [PATCH v2 08/15] KVM: x86: Add mode-aware versions of kvm_<reg>_{read,write}() helpers Sean Christopherson
2026-05-14 21:53 ` [PATCH v2 09/15] KVM: x86: Drop non-raw kvm_<reg>_write() helpers Sean Christopherson
2026-05-14 21:53 ` [PATCH v2 10/15] KVM: nSVM: Use kvm_rax_read() now that it's mode-aware Sean Christopherson
2026-05-14 21:53 ` Sean Christopherson [this message]
2026-05-14 21:53 ` [PATCH v2 12/15] KVM: x86: Harden is_64_bit_hypercall() against bugs on 32-bit kernels Sean Christopherson
2026-05-14 21:53 ` [PATCH v2 13/15] KVM: x86: Move update_cr8_intercept() to lapic.c Sean Christopherson
2026-05-14 21:53 ` [PATCH v2 14/15] KVM: x86: Move kvm_pv_async_pf_enabled() to x86.h (as an inline) Sean Christopherson
2026-05-14 21:53 ` [PATCH v2 15/15] KVM: x86: Move the bulk of register specific code from x86.c to regs.c Sean Christopherson
2026-05-14 22:31 ` [PATCH v2 00/15] KVM: x86: Clean up kvm_<reg>_{read,write}() mess Yosry Ahmed
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