Displaying 4 results from an estimated 4 matches for "n_vc_stacks".
2020 Apr 28
0
[PATCH v3 44/75] x86/sev-es: Allocate and Map IST stacks for #VC handler
...rong, print
+ *                     an error message
+ *
+ *     -> #VC(printk) - shifts #VC IST entry to 0, output driver
+ *                      uses 'movs'
+ *
+ *     -> #VC(movs) - shifts IST to unmapped stack, further #VCs will
+ *                    cause #DF
+ *
+ */
+#define N_VC_STACKS		5
+
+#define VC_STACK_MEMBERS(guardsize, holesize)			\
+	char	hole[holesize];					\
+	struct {						\
+		char guard[guardsize];				\
+		char stack[EXCEPTION_STKSZ];			\
+	} stacks[N_VC_STACKS];					\
+	char top_guard[guardsize];				\
+
+/* Physical storage */
+struct vmm_exception_stacks {
+	VC_ST...
2020 Apr 28
0
[PATCH v3 45/75] x86/dumpstack/64: Handle #VC exception stacks
.../include/asm/stacktrace.h
+++ b/arch/x86/include/asm/stacktrace.h
@@ -21,6 +21,10 @@ enum stack_type {
 	STACK_TYPE_ENTRY,
 	STACK_TYPE_EXCEPTION,
 	STACK_TYPE_EXCEPTION_LAST = STACK_TYPE_EXCEPTION + N_EXCEPTION_STACKS-1,
+#ifdef CONFIG_X86_64
+	STACK_TYPE_VC,
+	STACK_TYPE_VC_LAST = STACK_TYPE_VC + N_VC_STACKS - 1,
+#endif
 };
 
 struct stack_info {
diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
index 87b97897a881..2468963c1424 100644
--- a/arch/x86/kernel/dumpstack_64.c
+++ b/arch/x86/kernel/dumpstack_64.c
@@ -18,6 +18,7 @@
 
 #include <asm/cpu_entry_area.h>
 #include...
2020 Apr 28
116
[PATCH v3 00/75] x86: SEV-ES Guest Support
Hi,
here is the next version of changes to enable Linux to run as an SEV-ES
guest. The code was rebased to v5.7-rc3 and got a fair number of changes
since the last version.
What is SEV-ES
==============
SEV-ES is an acronym for 'Secure Encrypted Virtualization - Encrypted
State' and means a hardware feature of AMD processors which hides the
register state of VCPUs to the hypervisor by
2020 Apr 28
116
[PATCH v3 00/75] x86: SEV-ES Guest Support
Hi,
here is the next version of changes to enable Linux to run as an SEV-ES
guest. The code was rebased to v5.7-rc3 and got a fair number of changes
since the last version.
What is SEV-ES
==============
SEV-ES is an acronym for 'Secure Encrypted Virtualization - Encrypted
State' and means a hardware feature of AMD processors which hides the
register state of VCPUs to the hypervisor by