From: Sean Christopherson <seanjc@google.com>
To: Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Kiryl Shutsemau <kas@kernel.org>
Cc: kvm@vger.kernel.org, x86@kernel.org, linux-coco@lists.linux.dev,
linux-kernel@vger.kernel.org,
"Chang S . Bae" <chang.seok.bae@intel.com>
Subject: [PATCH 7/7] *** DO NOT MERGE *** KVM: x86: Pretend that APX is supported on 64-bit kernels
Date: Tue, 10 Mar 2026 17:33:46 -0700 [thread overview]
Message-ID: <20260311003346.2626238-8-seanjc@google.com> (raw)
In-Reply-To: <20260311003346.2626238-1-seanjc@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
---
arch/x86/include/asm/kvm_host.h | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index cff9023f12c7..3d9c8cc9d515 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -190,6 +190,27 @@ enum kvm_reg {
VCPU_REGS_R13 = __VCPU_REGS_R13,
VCPU_REGS_R14 = __VCPU_REGS_R14,
VCPU_REGS_R15 = __VCPU_REGS_R15,
+#define CONFIG_X86_APX
+
+#endif
+
+#ifdef CONFIG_X86_APX
+ VCPU_REG_R16 = VCPU_REGS_R15 + 1,
+ VCPU_REG_R17,
+ VCPU_REG_R18,
+ VCPU_REG_R19,
+ VCPU_REG_R20,
+ VCPU_REG_R21,
+ VCPU_REG_R22,
+ VCPU_REG_R23,
+ VCPU_REG_R24,
+ VCPU_REG_R25,
+ VCPU_REG_R26,
+ VCPU_REG_R27,
+ VCPU_REG_R28,
+ VCPU_REG_R29,
+ VCPU_REG_R30,
+ VCPU_REG_R31,
#endif
NR_VCPU_GENERAL_PURPOSE_REGS,
--
2.53.0.473.g4a7958ca14-goog
next prev parent reply other threads:[~2026-03-11 0:34 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-11 0:33 [PATCH 0/7] KVM: x86: APX reg prep work Sean Christopherson
2026-03-11 0:33 ` [PATCH 1/7] KVM: x86: Add dedicated storage for guest RIP Sean Christopherson
2026-03-11 0:33 ` [PATCH 2/7] KVM: x86: Drop the "EX" part of "EXREG" to avoid collision with APX Sean Christopherson
2026-03-11 18:46 ` Paolo Bonzini
2026-03-11 0:33 ` [PATCH 3/7] KVM: nVMX: Do a bitwise-AND of regs_avail when switching active VMCS Sean Christopherson
2026-03-11 0:33 ` [PATCH 4/7] KVM: x86: Add wrapper APIs to reset dirty/available register masks Sean Christopherson
2026-03-11 2:03 ` Yosry Ahmed
2026-03-11 13:31 ` Sean Christopherson
2026-03-11 18:28 ` Yosry Ahmed
2026-03-11 18:50 ` Paolo Bonzini
2026-03-13 0:38 ` Sean Christopherson
2026-03-11 0:33 ` [PATCH 5/7] KVM: x86: Track available/dirty register masks as "unsigned long" values Sean Christopherson
2026-03-11 0:33 ` [PATCH 6/7] KVM: x86: Use a proper bitmap for tracking available/dirty registers Sean Christopherson
2026-03-11 0:33 ` Sean Christopherson [this message]
2026-03-11 19:01 ` [PATCH 0/7] KVM: x86: APX reg prep work Paolo Bonzini
2026-03-12 16:34 ` Chang S. Bae
2026-03-12 17:47 ` Sean Christopherson
2026-03-12 18:11 ` Andrew Cooper
2026-03-12 18:29 ` Sean Christopherson
2026-03-12 18:33 ` Andrew Cooper
2026-03-25 18:28 ` Chang S. Bae
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