diff mbox series

[v2,1/2] KVM: x86: Shrink struct kvm_pmu

Message ID 20230217193336.15278-2-minipli@grsecurity.net
State New
Headers
Series KVM: Minor structure layout changes |

Commit Message

Mathias Krause Feb. 17, 2023, 7:33 p.m. UTC 
  Move the 'version' member to the beginning of the structure to reuse an
existing hole instead of introducing another one.

This allows us to save 8 bytes for 64 bit builds.

Signed-off-by: Mathias Krause <minipli@grsecurity.net>
---
 arch/x86/include/asm/kvm_host.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 6aaae18f1854..43329c60a6b5 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -516,6 +516,7 @@  struct kvm_pmc {
 #define KVM_PMC_MAX_FIXED	3
 #define KVM_AMD_PMC_MAX_GENERIC	6
 struct kvm_pmu {
+	u8 version;
 	unsigned nr_arch_gp_counters;
 	unsigned nr_arch_fixed_counters;
 	unsigned available_event_types;
@@ -528,7 +529,6 @@  struct kvm_pmu {
 	u64 global_ovf_ctrl_mask;
 	u64 reserved_bits;
 	u64 raw_event_mask;
-	u8 version;
 	struct kvm_pmc gp_counters[KVM_INTEL_PMC_MAX_GENERIC];
 	struct kvm_pmc fixed_counters[KVM_PMC_MAX_FIXED];
 	struct irq_work irq_work;