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authorLinus Torvalds <torvalds@linux-foundation.org>2022-01-12 16:26:58 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2022-01-12 16:26:58 -0800
commit8e5b0adeea19309c8ce0e3c9119061554973efa9 (patch)
treecfca61dab75ac07f8651ab0bc33b597707abf5cb /arch/csky
parent13eaa5bda0df8f5c1c4f2a4fb4a0bc20787dcc68 (diff)
parenta9f4a6e92b3b319296fb078da2615f618f6cd80c (diff)
downloadlinux-8e5b0adeea19309c8ce0e3c9119061554973efa9.tar.bz2
Merge tag 'perf_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Borislav Petkov: "Cleanup of the perf/kvm interaction." * tag 'perf_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Drop guest callback (un)register stubs KVM: arm64: Drop perf.c and fold its tiny bits of code into arm.c KVM: arm64: Hide kvm_arm_pmu_available behind CONFIG_HW_PERF_EVENTS=y KVM: arm64: Convert to the generic perf callbacks KVM: x86: Move Intel Processor Trace interrupt handler to vmx.c KVM: Move x86's perf guest info callbacks to generic KVM KVM: x86: More precisely identify NMI from guest when handling PMI KVM: x86: Drop current_vcpu for kvm_running_vcpu + kvm_arch_vcpu variable perf/core: Use static_call to optimize perf_guest_info_callbacks perf: Force architectures to opt-in to guest callbacks perf: Add wrappers for invoking guest callbacks perf/core: Rework guest callbacks to prepare for static_call support perf: Drop dead and useless guest "support" from arm, csky, nds32 and riscv perf: Stop pretending that perf can handle multiple guest callbacks KVM: x86: Register Processor Trace interrupt hook iff PT enabled in guest KVM: x86: Register perf callbacks after calling vendor's hardware_setup() perf: Protect perf_guest_cbs with RCU
Diffstat (limited to 'arch/csky')
-rw-r--r--arch/csky/kernel/perf_callchain.c10
1 files changed, 0 insertions, 10 deletions
diff --git a/arch/csky/kernel/perf_callchain.c b/arch/csky/kernel/perf_callchain.c
index ab55e98ee8f6..92057de08f4f 100644
--- a/arch/csky/kernel/perf_callchain.c
+++ b/arch/csky/kernel/perf_callchain.c
@@ -88,10 +88,6 @@ void perf_callchain_user(struct perf_callchain_entry_ctx *entry,
{
unsigned long fp = 0;
- /* C-SKY does not support virtualization. */
- if (perf_guest_cbs && perf_guest_cbs->is_in_guest())
- return;
-
fp = regs->regs[4];
perf_callchain_store(entry, regs->pc);
@@ -112,12 +108,6 @@ void perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,
{
struct stackframe fr;
- /* C-SKY does not support virtualization. */
- if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
- pr_warn("C-SKY does not support perf in guest mode!");
- return;
- }
-
fr.fp = regs->regs[4];
fr.lr = regs->lr;
walk_stackframe(&fr, entry);