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authorLinus Torvalds <torvalds@linux-foundation.org>2026-09-05 11:59:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-09-05 11:59:05 -0700
commit9f0346dcbea363787186c94ef94dd01aaa215afa (patch)
treeb81c168f4d0dbe4c7f4750f4598d48a6deb72094 /arch/mips/kvm/stats.c
downloadlinux-stable-9f0346dcbea363787186c94ef94dd01aaa215afa.tar.gz
linux-stable-9f0346dcbea363787186c94ef94dd01aaa215afa.zip
Merge tag 'driver-core-7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-coregrafted
Pull driver core fixes from Danilo Krummrich: - Fix kernfs listxattr() not returning security xattr names (e.g. SELinux labels) when the kernfs node has no allocated kernfs_iattrs - Fix silent truncation of IRQ vector indices in the Rust PCI abstractions - Don't select OF from DRIVER_PE_KUNIT_TEST; skip the test when OF is disabled instead of silently enabling extra kernel functionality - Russ Weight is retiring from kernel development; update the Firmware Loader sysfs contact to the driver-core mailing list, add a CREDITS entry for Firmware Upload, and update MAINTAINERS accordingly * tag 'driver-core-7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: MAINTAINERS: Remove Russ Weight from Firmware Loader CREDITS: Add CREDITS entry for Firmware Upload firmware_loader: Change contact for sysfs nodes rust: pci: reject IRQ vector indices that do not fit in u32 kernfs: preserve security xattrs without allocating iattrs drivers: base: test: DRIVER_PE_KUNIT_TEST should not select OF
Diffstat (limited to 'arch/mips/kvm/stats.c')
-rw-r--r--arch/mips/kvm/stats.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/arch/mips/kvm/stats.c b/arch/mips/kvm/stats.c
new file mode 100644
index 000000000..3e6682018
--- /dev/null
+++ b/arch/mips/kvm/stats.c
@@ -0,0 +1,63 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * KVM/MIPS: COP0 access histogram
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ * Authors: Sanjay Lal <sanjayl@kymasys.com>
+ */
+
+#include <linux/kvm_host.h>
+
+char *kvm_cop0_str[N_MIPS_COPROC_REGS] = {
+ "Index",
+ "Random",
+ "EntryLo0",
+ "EntryLo1",
+ "Context",
+ "PG Mask",
+ "Wired",
+ "HWREna",
+ "BadVAddr",
+ "Count",
+ "EntryHI",
+ "Compare",
+ "Status",
+ "Cause",
+ "EXC PC",
+ "PRID",
+ "Config",
+ "LLAddr",
+ "Watch Lo",
+ "Watch Hi",
+ "X Context",
+ "Reserved",
+ "Impl Dep",
+ "Debug",
+ "DEPC",
+ "PerfCnt",
+ "ErrCtl",
+ "CacheErr",
+ "TagLo",
+ "TagHi",
+ "ErrorEPC",
+ "DESAVE"
+};
+
+void kvm_mips_dump_stats(struct kvm_vcpu *vcpu)
+{
+#ifdef CONFIG_KVM_MIPS_DEBUG_COP0_COUNTERS
+ int i, j;
+
+ kvm_info("\nKVM VCPU[%d] COP0 Access Profile:\n", vcpu->vcpu_id);
+ for (i = 0; i < N_MIPS_COPROC_REGS; i++) {
+ for (j = 0; j < N_MIPS_COPROC_SEL; j++) {
+ if (vcpu->arch.cop0.stat[i][j])
+ kvm_info("%s[%d]: %lu\n", kvm_cop0_str[i], j,
+ vcpu->arch.cop0.stat[i][j]);
+ }
+ }
+#endif
+}