diff mbox series

[17/18] KVM: arm64: Reduce the size of the vcpu flag members

Message ID 20220528113829.1043361-18-maz@kernel.org (mailing list archive)
State New, archived
Headers show
Series KVM/arm64: Refactoring the vcpu flags | expand

Commit Message

Marc Zyngier May 28, 2022, 11:38 a.m. UTC 
Now that we can detect flags overflowing their container, reduce
the size of all flag set members in the vcpu struct, turning them
into 8bit quantities.

Even with the FP state enum occupying 32bit, the whole of the state
that was represented by flags is smaller by one byte. Profit!

Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 arch/arm64/include/asm/kvm_host.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 70931231f0cb..83f3dae4333a 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -336,13 +336,13 @@  struct kvm_vcpu_arch {
 	} fp_state;
 
 	/* Configuration flags */
-	u64 cflags;
+	u8 cflags;
 
 	/* Input flags to the hypervisor code */
-	u64 iflags;
+	u8 iflags;
 
 	/* State flags, unused by the hypervisor code */
-	u64 sflags;
+	u8 sflags;
 
 	/*
 	 * We maintain more than a single set of debug registers to support