KVM: arm64: nv: Add FEAT_RAS vSError sys regs to table

Prepare to implement RAS for NV by adding the missing EL2 sysregs for
the vSError context.

Reviewed-by: Marc Zyngier <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Oliver Upton <[email protected]>

Author: oupton

arch/arm64/include/asm/kvm_host.h

@@ -565,6 +565,10 @@ enum vcpu_sysreg {
 
 	VNCR(POR_EL1),	/* Permission Overlay Register 1 (EL1) */
 
+	/* FEAT_RAS registers */
+	VNCR(VDISR_EL2),
+	VNCR(VSESR_EL2),
+
 	VNCR(HFGRTR_EL2),
 	VNCR(HFGWTR_EL2),
 	VNCR(HFGITR_EL2),

arch/arm64/include/asm/vncr_mapping.h

@@ -84,6 +84,7 @@
 #define VNCR_ICH_HCR_EL2        0x4C0
 #define VNCR_ICH_VMCR_EL2       0x4C8
 #define VNCR_VDISR_EL2          0x500
+#define VNCR_VSESR_EL2		0x508
 #define VNCR_PMBLIMITR_EL1      0x800
 #define VNCR_PMBPTR_EL1         0x810
 #define VNCR_PMBSR_EL1          0x820

arch/arm64/kvm/sys_regs.c

@@ -3344,6 +3344,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
 	EL2_REG(AFSR0_EL2, access_rw, reset_val, 0),
 	EL2_REG(AFSR1_EL2, access_rw, reset_val, 0),
 	EL2_REG_REDIR(ESR_EL2, reset_val, 0),
+	EL2_REG_VNCR(VSESR_EL2, reset_unknown, 0),
 	{ SYS_DESC(SYS_FPEXC32_EL2), undef_access, reset_val, FPEXC32_EL2, 0x700 },
 
 	EL2_REG_REDIR(FAR_EL2, reset_val, 0),
@@ -3372,6 +3373,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
 	EL2_REG(VBAR_EL2, access_rw, reset_val, 0),
 	EL2_REG(RVBAR_EL2, access_rw, reset_val, 0),
 	{ SYS_DESC(SYS_RMR_EL2), undef_access },
+	EL2_REG_VNCR(VDISR_EL2, reset_unknown, 0),
 
 	EL2_REG_VNCR(ICH_AP0R0_EL2, reset_val, 0),
 	EL2_REG_VNCR(ICH_AP0R1_EL2, reset_val, 0),