Merge tag 'kvmarm-fixes-6.17-2' of https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 changes for 6.17, round #3

 - Invalidate nested MMUs upon freeing the PGD to avoid WARNs when
   visiting from an MMU notifier

 - Fixes to the TLB match process and TLB invalidation range for
   managing the VCNR pseudo-TLB

 - Prevent SPE from erroneously profiling guests due to UNKNOWN reset
   values in PMSCR_EL1

 - Fix save/restore of host MDCR_EL2 to account for eagerly programming
   at vcpu_load() on VHE systems

 - Correct lock ordering when dealing with VGIC LPIs, avoiding scenarios
   where an xarray's spinlock was nested with a *raw* spinlock

 - Permit stage-2 read permission aborts which are possible in the case
   of NV depending on the guest hypervisor's stage-2 translation

 - Call raw_spin_unlock() instead of the internal spinlock API

 - Fix parameter ordering when assigning VBAR_EL1

[Pull into kvm/master to fix conflicts. - Paolo]

Author: bonzini

CREDITS

@@ -3222,6 +3222,10 @@ D: AIC5800 IEEE 1394, RAW I/O on 1394
 D: Starter of Linux1394 effort
 S: ask per mail for current address
 
+N: Boris Pismenny
+E: [email protected]
+D: Kernel TLS implementation and offload support.
+
 N: Nicolas Pitre
 E: [email protected]
 D: StrongARM SA1100 support integrator & hacker
@@ -4168,6 +4172,9 @@ S: 1513 Brewster Dr.
 S: Carrollton, TX 75010
 S: USA
 
+N: Dave Watson
+D: Kernel TLS implementation.
+
 N: Tim Waugh
 E: [email protected]
 D: Co-architect of the parallel-port sharing system

Documentation/admin-guide/hw-vuln/attack_vector_controls.rst

@@ -215,7 +215,7 @@ Spectre_v2            X                           X
 Spectre_v2_user                      X                           X            *       (Note 1)
 SRBDS                 X              X            X              X
 SRSO                  X              X            X              X
-SSB                                                                                   (Note 4)
+SSB                                  X
 TAA                   X              X            X              X            *       (Note 2)
 TSA                   X              X            X              X
 =============== ============== ============ ============= ============== ============ ========
@@ -229,9 +229,6 @@ Notes:
    3 --  Disables SMT if cross-thread mitigations are fully enabled, the CPU is
    vulnerable, and STIBP is not supported
 
-   4 --  Speculative store bypass is always enabled by default (no kernel
-   mitigation applied) unless overridden with spec_store_bypass_disable option
-
 When an attack-vector is disabled, all mitigations for the vulnerabilities
 listed in the above table are disabled, unless mitigation is required for a
 different enabled attack-vector or a mitigation is explicitly selected via a

Documentation/devicetree/bindings/display/msm/qcom,mdp5.yaml

@@ -60,7 +60,6 @@ properties:
           - const: bus
           - const: core
           - const: vsync
-          - const: lut
           - const: tbu
           - const: tbu_rt
         # MSM8996 has additional iommu clock

Documentation/devicetree/bindings/vendor-prefixes.yaml

@@ -507,6 +507,8 @@ patternProperties:
     description: Espressif Systems Co. Ltd.
   "^est,.*":
     description: ESTeem Wireless Modems
+  "^eswin,.*":
+    description: Beijing ESWIN Technology Group Co. Ltd.
   "^ettus,.*":
     description: NI Ettus Research
   "^eukrea,.*":

MAINTAINERS

@@ -931,13 +931,13 @@ F:	Documentation/devicetree/bindings/dma/altr,msgdma.yaml
 F:	drivers/dma/altera-msgdma.c
 
 ALTERA PIO DRIVER
-M:	Mun Yew Tham <mun.yew.tham@intel.com>
+M:	Adrian Ng <adrianhoyin.ng@altera.com>
 L:	[email protected]
 S:	Maintained
 F:	drivers/gpio/gpio-altera.c
 
 ALTERA TRIPLE SPEED ETHERNET DRIVER
-M:	Joyce Ooi <joyce.ooi@intel.com>
+M:	Boon Khai Ng <boon.khai.ng@altera.com>
 L:	[email protected]
 S:	Maintained
 F:	drivers/net/ethernet/altera/
@@ -4205,7 +4205,7 @@ W:	http://www.baycom.org/~tom/ham/ham.html
 F:	drivers/net/hamradio/baycom*
 
 BCACHE (BLOCK LAYER CACHE)
-M:	Coly Li <colyli@kernel.org>
+M:	Coly Li <colyli@fnnas.com>
 M:	Kent Overstreet <[email protected]>
 L:	[email protected]
 S:	Maintained
@@ -4216,7 +4216,7 @@ F:	drivers/md/bcache/
 BCACHEFS
 M:	Kent Overstreet <[email protected]>
 L:	[email protected]
-S:	Supported
+S:	Externally maintained
 C:	irc://irc.oftc.net/bcache
 P:      Documentation/filesystems/bcachefs/SubmittingPatches.rst
 T:	git https://evilpiepirate.org/git/bcachefs.git
@@ -17848,7 +17848,6 @@ F:	net/ipv6/syncookies.c
 F:	net/ipv6/tcp*.c
 
 NETWORKING [TLS]
-M:	Boris Pismenny <[email protected]>
 M:	John Fastabend <[email protected]>
 M:	Jakub Kicinski <[email protected]>
 L:	[email protected]
@@ -20878,8 +20877,8 @@ S:	Maintained
 F:	drivers/firmware/qcom/qcom_qseecom_uefisecapp.c
 
 QUALCOMM RMNET DRIVER
-M:	Subash Abhinov Kasiviswanathan <quic_subashab@quicinc.com>
-M:	Sean Tranchetti <quic_stranche@quicinc.com>
+M:	Subash Abhinov Kasiviswanathan <[email protected].com>
+M:	Sean Tranchetti <[email protected].com>
 L:	[email protected]
 S:	Maintained
 F:	Documentation/networking/device_drivers/cellular/qualcomm/rmnet.rst

Makefile

@@ -2,7 +2,7 @@
 VERSION = 6
 PATCHLEVEL = 17
 SUBLEVEL = 0
-EXTRAVERSION = -rc3
+EXTRAVERSION = -rc4
 NAME = Baby Opossum Posse
 
 # *DOCUMENTATION*

arch/arm/include/asm/stacktrace.h

@@ -2,8 +2,9 @@
 #ifndef __ASM_STACKTRACE_H
 #define __ASM_STACKTRACE_H
 
-#include <asm/ptrace.h>
 #include <linux/llist.h>
+#include <asm/ptrace.h>
+#include <asm/sections.h>
 
 struct stackframe {
 	/*

arch/arm64/include/asm/kvm_host.h

@@ -1160,115 +1160,8 @@ u64 kvm_vcpu_apply_reg_masks(const struct kvm_vcpu *, enum vcpu_sysreg, u64);
 		__v;							\
 	})
 
-u64 vcpu_read_sys_reg(const struct kvm_vcpu *vcpu, int reg);
-void vcpu_write_sys_reg(struct kvm_vcpu *vcpu, u64 val, int reg);
-
-static inline bool __vcpu_read_sys_reg_from_cpu(int reg, u64 *val)
-{
-	/*
-	 * *** VHE ONLY ***
-	 *
-	 * System registers listed in the switch are not saved on every
-	 * exit from the guest but are only saved on vcpu_put.
-	 *
-	 * SYSREGS_ON_CPU *MUST* be checked before using this helper.
-	 *
-	 * Note that MPIDR_EL1 for the guest is set by KVM via VMPIDR_EL2 but
-	 * should never be listed below, because the guest cannot modify its
-	 * own MPIDR_EL1 and MPIDR_EL1 is accessed for VCPU A from VCPU B's
-	 * thread when emulating cross-VCPU communication.
-	 */
-	if (!has_vhe())
-		return false;
-
-	switch (reg) {
-	case SCTLR_EL1:		*val = read_sysreg_s(SYS_SCTLR_EL12);	break;
-	case CPACR_EL1:		*val = read_sysreg_s(SYS_CPACR_EL12);	break;
-	case TTBR0_EL1:		*val = read_sysreg_s(SYS_TTBR0_EL12);	break;
-	case TTBR1_EL1:		*val = read_sysreg_s(SYS_TTBR1_EL12);	break;
-	case TCR_EL1:		*val = read_sysreg_s(SYS_TCR_EL12);	break;
-	case TCR2_EL1:		*val = read_sysreg_s(SYS_TCR2_EL12);	break;
-	case PIR_EL1:		*val = read_sysreg_s(SYS_PIR_EL12);	break;
-	case PIRE0_EL1:		*val = read_sysreg_s(SYS_PIRE0_EL12);	break;
-	case POR_EL1:		*val = read_sysreg_s(SYS_POR_EL12);	break;
-	case ESR_EL1:		*val = read_sysreg_s(SYS_ESR_EL12);	break;
-	case AFSR0_EL1:		*val = read_sysreg_s(SYS_AFSR0_EL12);	break;
-	case AFSR1_EL1:		*val = read_sysreg_s(SYS_AFSR1_EL12);	break;
-	case FAR_EL1:		*val = read_sysreg_s(SYS_FAR_EL12);	break;
-	case MAIR_EL1:		*val = read_sysreg_s(SYS_MAIR_EL12);	break;
-	case VBAR_EL1:		*val = read_sysreg_s(SYS_VBAR_EL12);	break;
-	case CONTEXTIDR_EL1:	*val = read_sysreg_s(SYS_CONTEXTIDR_EL12);break;
-	case TPIDR_EL0:		*val = read_sysreg_s(SYS_TPIDR_EL0);	break;
-	case TPIDRRO_EL0:	*val = read_sysreg_s(SYS_TPIDRRO_EL0);	break;
-	case TPIDR_EL1:		*val = read_sysreg_s(SYS_TPIDR_EL1);	break;
-	case AMAIR_EL1:		*val = read_sysreg_s(SYS_AMAIR_EL12);	break;
-	case CNTKCTL_EL1:	*val = read_sysreg_s(SYS_CNTKCTL_EL12);	break;
-	case ELR_EL1:		*val = read_sysreg_s(SYS_ELR_EL12);	break;
-	case SPSR_EL1:		*val = read_sysreg_s(SYS_SPSR_EL12);	break;
-	case PAR_EL1:		*val = read_sysreg_par();		break;
-	case DACR32_EL2:	*val = read_sysreg_s(SYS_DACR32_EL2);	break;
-	case IFSR32_EL2:	*val = read_sysreg_s(SYS_IFSR32_EL2);	break;
-	case DBGVCR32_EL2:	*val = read_sysreg_s(SYS_DBGVCR32_EL2);	break;
-	case ZCR_EL1:		*val = read_sysreg_s(SYS_ZCR_EL12);	break;
-	case SCTLR2_EL1:	*val = read_sysreg_s(SYS_SCTLR2_EL12);	break;
-	default:		return false;
-	}
-
-	return true;
-}
-
-static inline bool __vcpu_write_sys_reg_to_cpu(u64 val, int reg)
-{
-	/*
-	 * *** VHE ONLY ***
-	 *
-	 * System registers listed in the switch are not restored on every
-	 * entry to the guest but are only restored on vcpu_load.
-	 *
-	 * SYSREGS_ON_CPU *MUST* be checked before using this helper.
-	 *
-	 * Note that MPIDR_EL1 for the guest is set by KVM via VMPIDR_EL2 but
-	 * should never be listed below, because the MPIDR should only be set
-	 * once, before running the VCPU, and never changed later.
-	 */
-	if (!has_vhe())
-		return false;
-
-	switch (reg) {
-	case SCTLR_EL1:		write_sysreg_s(val, SYS_SCTLR_EL12);	break;
-	case CPACR_EL1:		write_sysreg_s(val, SYS_CPACR_EL12);	break;
-	case TTBR0_EL1:		write_sysreg_s(val, SYS_TTBR0_EL12);	break;
-	case TTBR1_EL1:		write_sysreg_s(val, SYS_TTBR1_EL12);	break;
-	case TCR_EL1:		write_sysreg_s(val, SYS_TCR_EL12);	break;
-	case TCR2_EL1:		write_sysreg_s(val, SYS_TCR2_EL12);	break;
-	case PIR_EL1:		write_sysreg_s(val, SYS_PIR_EL12);	break;
-	case PIRE0_EL1:		write_sysreg_s(val, SYS_PIRE0_EL12);	break;
-	case POR_EL1:		write_sysreg_s(val, SYS_POR_EL12);	break;
-	case ESR_EL1:		write_sysreg_s(val, SYS_ESR_EL12);	break;
-	case AFSR0_EL1:		write_sysreg_s(val, SYS_AFSR0_EL12);	break;
-	case AFSR1_EL1:		write_sysreg_s(val, SYS_AFSR1_EL12);	break;
-	case FAR_EL1:		write_sysreg_s(val, SYS_FAR_EL12);	break;
-	case MAIR_EL1:		write_sysreg_s(val, SYS_MAIR_EL12);	break;
-	case VBAR_EL1:		write_sysreg_s(val, SYS_VBAR_EL12);	break;
-	case CONTEXTIDR_EL1:	write_sysreg_s(val, SYS_CONTEXTIDR_EL12);break;
-	case TPIDR_EL0:		write_sysreg_s(val, SYS_TPIDR_EL0);	break;
-	case TPIDRRO_EL0:	write_sysreg_s(val, SYS_TPIDRRO_EL0);	break;
-	case TPIDR_EL1:		write_sysreg_s(val, SYS_TPIDR_EL1);	break;
-	case AMAIR_EL1:		write_sysreg_s(val, SYS_AMAIR_EL12);	break;
-	case CNTKCTL_EL1:	write_sysreg_s(val, SYS_CNTKCTL_EL12);	break;
-	case ELR_EL1:		write_sysreg_s(val, SYS_ELR_EL12);	break;
-	case SPSR_EL1:		write_sysreg_s(val, SYS_SPSR_EL12);	break;
-	case PAR_EL1:		write_sysreg_s(val, SYS_PAR_EL1);	break;
-	case DACR32_EL2:	write_sysreg_s(val, SYS_DACR32_EL2);	break;
-	case IFSR32_EL2:	write_sysreg_s(val, SYS_IFSR32_EL2);	break;
-	case DBGVCR32_EL2:	write_sysreg_s(val, SYS_DBGVCR32_EL2);	break;
-	case ZCR_EL1:		write_sysreg_s(val, SYS_ZCR_EL12);	break;
-	case SCTLR2_EL1:	write_sysreg_s(val, SYS_SCTLR2_EL12);	break;
-	default:		return false;
-	}
-
-	return true;
-}
+u64 vcpu_read_sys_reg(const struct kvm_vcpu *, enum vcpu_sysreg);
+void vcpu_write_sys_reg(struct kvm_vcpu *, u64, enum vcpu_sysreg);
 
 struct kvm_vm_stat {
 	struct kvm_vm_stat_generic generic;
@@ -1476,6 +1369,7 @@ static inline bool kvm_system_needs_idmapped_vectors(void)
 }
 
 void kvm_init_host_debug_data(void);
+void kvm_debug_init_vhe(void);
 void kvm_vcpu_load_debug(struct kvm_vcpu *vcpu);
 void kvm_vcpu_put_debug(struct kvm_vcpu *vcpu);
 void kvm_debug_set_guest_ownership(struct kvm_vcpu *vcpu);

arch/arm64/include/asm/kvm_mmu.h

@@ -180,6 +180,7 @@ void kvm_free_stage2_pgd(struct kvm_s2_mmu *mmu);
 int kvm_phys_addr_ioremap(struct kvm *kvm, phys_addr_t guest_ipa,
 			  phys_addr_t pa, unsigned long size, bool writable);
 
+int kvm_handle_guest_sea(struct kvm_vcpu *vcpu);
 int kvm_handle_guest_abort(struct kvm_vcpu *vcpu);
 
 phys_addr_t kvm_mmu_get_httbr(void);