If KVM memory protection is active, the trampoline area will need to be in shared memory. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> --- arch/x86/realmode/init.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c index 1ed1208931e0..7392940a7f96 100644 --- a/arch/x86/realmode/init.c +++ b/arch/x86/realmode/init.c @@ -9,6 +9,7 @@ #include <asm/realmode.h> #include <asm/tlbflush.h> #include <asm/crash.h> +#include <asm/kvm_para.h> struct real_mode_header *real_mode_header; u32 *trampoline_cr4_features; @@ -55,11 +56,11 @@ static void __init setup_real_mode(void) base = (unsigned char *)real_mode_header; /* - * If SME is active, the trampoline area will need to be in - * decrypted memory in order to bring up other processors + * If SME or KVM memory protection is active, the trampoline area will + * need to be in decrypted memory in order to bring up other processors * successfully. This is not needed for SEV. */ - if (sme_active()) + if (sme_active() || kvm_mem_protected()) set_memory_decrypted((unsigned long)base, size >> PAGE_SHIFT); memcpy(base, real_mode_blob, size); -- 2.26.2
