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| author | Neeraj Upadhyay <[email protected]> | 2025-07-09 03:32:17 +0000 |
|---|---|---|
| committer | Sean Christopherson <[email protected]> | 2025-07-10 16:44:41 +0000 |
| commit | 39e81633f65eeb474215c95991c19f31b5a19a11 (patch) | |
| tree | 679212669233fe0798a6c8398ceb6c1084199070 /arch/x86/kvm/lapic.c | |
| parent | KVM: x86: Rename lapic set/clear vector helpers (diff) | |
| download | kernel-39e81633f65eeb474215c95991c19f31b5a19a11.tar.gz kernel-39e81633f65eeb474215c95991c19f31b5a19a11.zip | |
x86/apic: KVM: Move apic_find_highest_vector() to a common header
In preparation for using apic_find_highest_vector() in Secure AVIC
guest APIC driver, move it and associated macros to apic.h.
No functional change intended.
Acked-by: Sean Christopherson <[email protected]>
Signed-off-by: Neeraj Upadhyay <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Sean Christopherson <[email protected]>
Diffstat (limited to 'arch/x86/kvm/lapic.c')
| -rw-r--r-- | arch/x86/kvm/lapic.c | 18 |
1 files changed, 1 insertions, 17 deletions
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 27cc8dc1514e..ace2530b24b8 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -27,6 +27,7 @@ #include <linux/export.h> #include <linux/math64.h> #include <linux/slab.h> +#include <asm/apic.h> #include <asm/processor.h> #include <asm/mce.h> #include <asm/msr.h> @@ -55,9 +56,6 @@ /* 14 is the version for Xeon and Pentium 8.4.8*/ #define APIC_VERSION 0x14UL #define LAPIC_MMIO_LENGTH (1 << 12) -/* followed define is not in apicdef.h */ -#define MAX_APIC_VECTOR 256 -#define APIC_VECTORS_PER_REG 32 /* * Enable local APIC timer advancement (tscdeadline mode only) with adaptive @@ -616,20 +614,6 @@ static const unsigned int apic_lvt_mask[KVM_APIC_MAX_NR_LVT_ENTRIES] = { [LVT_CMCI] = LVT_MASK | APIC_MODE_MASK }; -static int apic_find_highest_vector(void *bitmap) -{ - int vec; - u32 *reg; - - for (vec = MAX_APIC_VECTOR - APIC_VECTORS_PER_REG; vec >= 0; vec -= APIC_VECTORS_PER_REG) { - reg = bitmap + APIC_VECTOR_TO_REG_OFFSET(vec); - if (*reg) - return __fls(*reg) + vec; - } - - return -1; -} - static u8 count_vectors(void *bitmap) { int vec; |