Merge branch kvm-arm64/nv-trap-forwarding into kvmarm-master/next

* kvm-arm64/nv-trap-forwarding: (30 commits)
  : .
  : This implements the so called "trap forwarding" infrastructure, which
  : gets used when we take a trap from an L2 guest and that the L1 guest
  : wants to see the trap for itself.
  : .
  KVM: arm64: nv: Add trap description for SPSR_EL2 and ELR_EL2
  KVM: arm64: nv: Select XARRAY_MULTI to fix build error
  KVM: arm64: nv: Add support for HCRX_EL2
  KVM: arm64: Move HCRX_EL2 switch to load/put on VHE systems
  KVM: arm64: nv: Expose FGT to nested guests
  KVM: arm64: nv: Add switching support for HFGxTR/HDFGxTR
  KVM: arm64: nv: Expand ERET trap forwarding to handle FGT
  KVM: arm64: nv: Add SVC trap forwarding
  KVM: arm64: nv: Add trap forwarding for HDFGxTR_EL2
  KVM: arm64: nv: Add trap forwarding for HFGITR_EL2
  KVM: arm64: nv: Add trap forwarding for HFGxTR_EL2
  KVM: arm64: nv: Add fine grained trap forwarding infrastructure
  KVM: arm64: nv: Add trap forwarding for CNTHCTL_EL2
  KVM: arm64: nv: Add trap forwarding for MDCR_EL2
  KVM: arm64: nv: Expose FEAT_EVT to nested guests
  KVM: arm64: nv: Add trap forwarding for HCR_EL2
  KVM: arm64: nv: Add trap forwarding infrastructure
  KVM: arm64: Restructure FGT register switching
  KVM: arm64: nv: Add FGT registers
  KVM: arm64: Add missing HCR_EL2 trap bits
  ...

Signed-off-by: Marc Zyngier <maz@kernel.org>

2 files changed, 130 insertions, 0 deletions

diff --git a/arch/arm64/tools/cpucaps b/arch/arm64/tools/cpucaps
index c80ed4f3cbce..c3f06fdef609 100644
--- a/arch/arm64/tools/cpucaps
+++ b/arch/arm64/tools/cpucaps
@@ -26,6 +26,7 @@ HAS_ECV
 HAS_ECV_CNTPOFF
 HAS_EPAN
 HAS_EVT
+HAS_FGT
 HAS_GENERIC_AUTH
 HAS_GENERIC_AUTH_ARCH_QARMA3
 HAS_GENERIC_AUTH_ARCH_QARMA5
diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
index 65866bf819c3..2517ef7c21cf 100644
--- a/arch/arm64/tools/sysreg
+++ b/arch/arm64/tools/sysreg
@@ -2156,6 +2156,135 @@ Field	1	ICIALLU
 Field	0	ICIALLUIS
 EndSysreg
 
+Sysreg HDFGRTR_EL2	3	4	3	1	4
+Field	63	PMBIDR_EL1
+Field	62	nPMSNEVFR_EL1
+Field	61	nBRBDATA
+Field	60	nBRBCTL
+Field	59	nBRBIDR
+Field	58	PMCEIDn_EL0
+Field	57	PMUSERENR_EL0
+Field	56	TRBTRG_EL1
+Field	55	TRBSR_EL1
+Field	54	TRBPTR_EL1
+Field	53	TRBMAR_EL1
+Field	52	TRBLIMITR_EL1
+Field	51	TRBIDR_EL1
+Field	50	TRBBASER_EL1
+Res0	49
+Field	48	TRCVICTLR
+Field	47	TRCSTATR
+Field	46	TRCSSCSRn
+Field	45	TRCSEQSTR
+Field	44	TRCPRGCTLR
+Field	43	TRCOSLSR
+Res0	42
+Field	41	TRCIMSPECn
+Field	40	TRCID
+Res0	39:38
+Field	37	TRCCNTVRn
+Field	36	TRCCLAIM
+Field	35	TRCAUXCTLR
+Field	34	TRCAUTHSTATUS
+Field	33	TRC
+Field	32	PMSLATFR_EL1
+Field	31	PMSIRR_EL1
+Field	30	PMSIDR_EL1
+Field	29	PMSICR_EL1
+Field	28	PMSFCR_EL1
+Field	27	PMSEVFR_EL1
+Field	26	PMSCR_EL1
+Field	25	PMBSR_EL1
+Field	24	PMBPTR_EL1
+Field	23	PMBLIMITR_EL1
+Field	22	PMMIR_EL1
+Res0	21:20
+Field	19	PMSELR_EL0
+Field	18	PMOVS
+Field	17	PMINTEN
+Field	16	PMCNTEN
+Field	15	PMCCNTR_EL0
+Field	14	PMCCFILTR_EL0
+Field	13	PMEVTYPERn_EL0
+Field	12	PMEVCNTRn_EL0
+Field	11	OSDLR_EL1
+Field	10	OSECCR_EL1
+Field	9	OSLSR_EL1
+Res0	8
+Field	7	DBGPRCR_EL1
+Field	6	DBGAUTHSTATUS_EL1
+Field	5	DBGCLAIM
+Field	4	MDSCR_EL1
+Field	3	DBGWVRn_EL1
+Field	2	DBGWCRn_EL1
+Field	1	DBGBVRn_EL1
+Field	0	DBGBCRn_EL1
+EndSysreg
+
+Sysreg HDFGWTR_EL2	3	4	3	1	5
+Res0	63
+Field	62	nPMSNEVFR_EL1
+Field	61	nBRBDATA
+Field	60	nBRBCTL
+Res0	59:58
+Field	57	PMUSERENR_EL0
+Field	56	TRBTRG_EL1
+Field	55	TRBSR_EL1
+Field	54	TRBPTR_EL1
+Field	53	TRBMAR_EL1
+Field	52	TRBLIMITR_EL1
+Res0	51
+Field	50	TRBBASER_EL1
+Field	49	TRFCR_EL1
+Field	48	TRCVICTLR
+Res0	47
+Field	46	TRCSSCSRn
+Field	45	TRCSEQSTR
+Field	44	TRCPRGCTLR
+Res0	43
+Field	42	TRCOSLAR
+Field	41	TRCIMSPECn
+Res0	40:38
+Field	37	TRCCNTVRn
+Field	36	TRCCLAIM
+Field	35	TRCAUXCTLR
+Res0	34
+Field	33	TRC
+Field	32	PMSLATFR_EL1
+Field	31	PMSIRR_EL1
+Res0	30
+Field	29	PMSICR_EL1
+Field	28	PMSFCR_EL1
+Field	27	PMSEVFR_EL1
+Field	26	PMSCR_EL1
+Field	25	PMBSR_EL1
+Field	24	PMBPTR_EL1
+Field	23	PMBLIMITR_EL1
+Res0	22
+Field	21	PMCR_EL0
+Field	20	PMSWINC_EL0
+Field	19	PMSELR_EL0
+Field	18	PMOVS
+Field	17	PMINTEN
+Field	16	PMCNTEN
+Field	15	PMCCNTR_EL0
+Field	14	PMCCFILTR_EL0
+Field	13	PMEVTYPERn_EL0
+Field	12	PMEVCNTRn_EL0
+Field	11	OSDLR_EL1
+Field	10	OSECCR_EL1
+Res0	9
+Field	8	OSLAR_EL1
+Field	7	DBGPRCR_EL1
+Res0	6
+Field	5	DBGCLAIM
+Field	4	MDSCR_EL1
+Field	3	DBGWVRn_EL1
+Field	2	DBGWCRn_EL1
+Field	1	DBGBVRn_EL1
+Field	0	DBGBCRn_EL1
+EndSysreg
+
 Sysreg	ZCR_EL2	3	4	1	2	0
 Fields	ZCR_ELx
 EndSysreg