Merge tag 'linux-cpupower-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux

Merge cpupower utility updates for 6.18-rc1 from Shuah Khan:

"Fixes incorrect return vale in cpupower_write_sysfs() error path
 and passing incorrect size to cpuidle_state_write_file() while
 writing status to disable file in cpuidle_state_disable()."

* tag 'linux-cpupower-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux: (1125 commits)
  tools/cpupower: Fix incorrect size in cpuidle_state_disable()
  tools/cpupower: fix error return value in cpupower_write_sysfs()
  Linux 6.17-rc6
  MAINTAINERS: Input: Drop melfas-mip4 section
  USB: core: remove the move buf action
  MAINTAINERS: Update the DMA Rust entry
  erofs: fix long xattr name prefix placement
  Revert "net: usb: asix: ax88772: drop phylink use in PM to avoid MDIO runtime PM wakeups"
  hsr: hold rcu and dev lock for hsr_get_port_ndev
  hsr: use hsr_for_each_port_rtnl in hsr_port_get_hsr
  hsr: use rtnl lock when iterating over ports
  wifi: nl80211: completely disable per-link stats for now
  net: usb: asix: ax88772: drop phylink use in PM to avoid MDIO runtime PM wakeups
  net: ethtool: fix wrong type used in struct kernel_ethtool_ts_info
  selftests/bpf: Skip timer cases when bpf_timer is not supported
  bpf: Reject bpf_timer for PREEMPT_RT
  libceph: fix invalid accesses to ceph_connection_v1_info
  PM: hibernate: Restrict GFP mask in hibernation_snapshot()
  MAINTAINERS: add Phil as netfilter reviewer
  netfilter: nf_tables: restart set lookup on base_seq change
  ...

1 files changed, 6 insertions, 14 deletions

diff --git a/arch/arm64/kvm/hyp/exception.c b/arch/arm64/kvm/hyp/exception.c
index 95d186e0bf54..bef40ddb16db 100644
--- a/arch/arm64/kvm/hyp/exception.c
+++ b/arch/arm64/kvm/hyp/exception.c
@@ -22,36 +22,28 @@
 
 static inline u64 __vcpu_read_sys_reg(const struct kvm_vcpu *vcpu, int reg)
 {
-	u64 val;
-
-	if (unlikely(vcpu_has_nv(vcpu)))
+	if (has_vhe())
 		return vcpu_read_sys_reg(vcpu, reg);
-	else if (vcpu_get_flag(vcpu, SYSREGS_ON_CPU) &&
-		 __vcpu_read_sys_reg_from_cpu(reg, &val))
-		return val;
 
 	return __vcpu_sys_reg(vcpu, reg);
 }
 
 static inline void __vcpu_write_sys_reg(struct kvm_vcpu *vcpu, u64 val, int reg)
 {
-	if (unlikely(vcpu_has_nv(vcpu)))
+	if (has_vhe())
 		vcpu_write_sys_reg(vcpu, val, reg);
-	else if (!vcpu_get_flag(vcpu, SYSREGS_ON_CPU) ||
-		 !__vcpu_write_sys_reg_to_cpu(val, reg))
+	else
 		__vcpu_assign_sys_reg(vcpu, reg, val);
 }
 
 static void __vcpu_write_spsr(struct kvm_vcpu *vcpu, unsigned long target_mode,
 			      u64 val)
 {
-	if (unlikely(vcpu_has_nv(vcpu))) {
+	if (has_vhe()) {
 		if (target_mode == PSR_MODE_EL1h)
 			vcpu_write_sys_reg(vcpu, val, SPSR_EL1);
 		else
 			vcpu_write_sys_reg(vcpu, val, SPSR_EL2);
-	} else if (has_vhe()) {
-		write_sysreg_el1(val, SYS_SPSR);
 	} else {
 		__vcpu_assign_sys_reg(vcpu, SPSR_EL1, val);
 	}
@@ -59,7 +51,7 @@ static void __vcpu_write_spsr(struct kvm_vcpu *vcpu, unsigned long target_mode,
 
 static void __vcpu_write_spsr_abt(struct kvm_vcpu *vcpu, u64 val)
 {
-	if (has_vhe())
+	if (has_vhe() && vcpu_get_flag(vcpu, SYSREGS_ON_CPU))
 		write_sysreg(val, spsr_abt);
 	else
 		vcpu->arch.ctxt.spsr_abt = val;
@@ -67,7 +59,7 @@ static void __vcpu_write_spsr_abt(struct kvm_vcpu *vcpu, u64 val)
 
 static void __vcpu_write_spsr_und(struct kvm_vcpu *vcpu, u64 val)
 {
-	if (has_vhe())
+	if (has_vhe() && vcpu_get_flag(vcpu, SYSREGS_ON_CPU))
 		write_sysreg(val, spsr_und);
 	else
 		vcpu->arch.ctxt.spsr_und = val;