diff mbox series

[RFC,11/31] KVM: selftests: Skip vm_is_gpa_protected() call for APIC MMIO base

Message ID 20250228093024.114983-12-Neeraj.Upadhyay@amd.com (mailing list archive)
State New
Headers show
Series AMD: Add Secure AVIC KVM selftests | expand

Commit Message

Neeraj Upadhyay Feb. 28, 2025, 9:30 a.m. UTC 
Skip vm_is_gpa_protected() call for APIC MMIO address in __virt_pg_map().
Without this change, the virt_pg_map() fails with below error for
APIC MMIO address.

    No vm physical memory at 0xfee00000

Signed-off-by: Neeraj Upadhyay <Neeraj.Upadhyay@amd.com>
---
 tools/testing/selftests/kvm/lib/x86/processor.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/tools/testing/selftests/kvm/lib/x86/processor.c b/tools/testing/selftests/kvm/lib/x86/processor.c
index 7129dfb652c4..197110ff1380 100644
--- a/tools/testing/selftests/kvm/lib/x86/processor.c
+++ b/tools/testing/selftests/kvm/lib/x86/processor.c
@@ -8,6 +8,7 @@ 
 #include "kvm_util.h"
 #include "processor.h"
 #include "sev.h"
+#include "apic.h"
 
 #ifndef NUM_INTERRUPTS
 #define NUM_INTERRUPTS 256
@@ -227,6 +228,11 @@  void __virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr, int level)
 		    "PTE already present for 4k page at vaddr: 0x%lx", vaddr);
 	*pte = PTE_PRESENT_MASK | PTE_WRITABLE_MASK | (paddr & PHYSICAL_PAGE_MASK);
 
+	if (paddr == APIC_DEFAULT_GPA) {
+		*pte |= vm->arch.s_bit;
+		return;
+	}
+
 	/*
 	 * Neither SEV nor TDX supports shared page tables, so only the final
 	 * leaf PTE needs manually set the C/S-bit.