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kvm: rename KVM_MAX_VCPU_ID to KVM_MAX_VCPU_IDS

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KVM_MAX_VCPU_ID is not specifying the highest allowed vcpu-id, but the
number of allowed vcpu-ids. This has already led to confusion, so
rename KVM_MAX_VCPU_ID to KVM_MAX_VCPU_IDS to make its semantics more
clear

Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210913135745.13944-3-jgross@suse.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Juergen Gross 2021-09-13 15:57:44 +02:00 committed by Paolo Bonzini
parent 1e254d0d86
commit a1c42ddedf
14 changed files with 17 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/virt/kvm/devices/xics.rst
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@ -22,7 +22,7 @@ Groups:
Errors:
======= ==========================================
-EINVAL Value greater than KVM_MAX_VCPU_ID.
-EINVAL Value greater than KVM_MAX_VCPU_IDS.
-EFAULT Invalid user pointer for attr->addr.
-EBUSY A vcpu is already connected to the device.
======= ==========================================

2
Documentation/virt/kvm/devices/xive.rst
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@ -91,7 +91,7 @@ the legacy interrupt mode, referred as XICS (POWER7/8).
Errors:
======= ==========================================
-EINVAL Value greater than KVM_MAX_VCPU_ID.
-EINVAL Value greater than KVM_MAX_VCPU_IDS.
-EFAULT Invalid user pointer for attr->addr.
-EBUSY A vCPU is already connected to the device.
======= ==========================================

2
arch/mips/kvm/mips.c
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@ -1073,7 +1073,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
r = KVM_MAX_VCPUS;
break;
case KVM_CAP_MAX_VCPU_ID:
r = KVM_MAX_VCPU_ID;
r = KVM_MAX_VCPU_IDS;
break;
case KVM_CAP_MIPS_FPU:
/* We don't handle systems with inconsistent cpu_has_fpu */

2
arch/powerpc/include/asm/kvm_book3s.h
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@ -434,7 +434,7 @@ extern int kvmppc_h_logical_ci_store(struct kvm_vcpu *vcpu);
#define SPLIT_HACK_OFFS 0xfb000000
/*
* This packs a VCPU ID from the [0..KVM_MAX_VCPU_ID) space down to the
* This packs a VCPU ID from the [0..KVM_MAX_VCPU_IDS) space down to the
* [0..KVM_MAX_VCPUS) space, using knowledge of the guest's core stride
* (but not its actual threading mode, which is not available) to avoid
* collisions.

4
arch/powerpc/include/asm/kvm_host.h
View File

@ -33,11 +33,11 @@
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
#include <asm/kvm_book3s_asm.h> /* for MAX_SMT_THREADS */
#define KVM_MAX_VCPU_ID (MAX_SMT_THREADS * KVM_MAX_VCORES)
#define KVM_MAX_VCPU_IDS (MAX_SMT_THREADS * KVM_MAX_VCORES)
#define KVM_MAX_NESTED_GUESTS KVMPPC_NR_LPIDS
#else
#define KVM_MAX_VCPU_ID KVM_MAX_VCPUS
#define KVM_MAX_VCPU_IDS KVM_MAX_VCPUS
#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
#define __KVM_HAVE_ARCH_INTC_INITIALIZED

2
arch/powerpc/kvm/book3s_xive.c
View File

@ -1928,7 +1928,7 @@ int kvmppc_xive_set_nr_servers(struct kvmppc_xive *xive, u64 addr)
pr_devel("%s nr_servers=%u\n", __func__, nr_servers);
if (!nr_servers || nr_servers > KVM_MAX_VCPU_ID)
if (!nr_servers || nr_servers > KVM_MAX_VCPU_IDS)
return -EINVAL;
mutex_lock(&xive->lock);

2
arch/powerpc/kvm/powerpc.c
View File

@ -649,7 +649,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
r = KVM_MAX_VCPUS;
break;
case KVM_CAP_MAX_VCPU_ID:
r = KVM_MAX_VCPU_ID;
r = KVM_MAX_VCPU_IDS;
break;
#ifdef CONFIG_PPC_BOOK3S_64
case KVM_CAP_PPC_GET_SMMU_INFO:

2
arch/x86/include/asm/kvm_host.h
View File

@ -50,7 +50,7 @@
* so ratio of 4 should be enough.
*/
#define KVM_VCPU_ID_RATIO 4
#define KVM_MAX_VCPU_ID (KVM_MAX_VCPUS * KVM_VCPU_ID_RATIO)
#define KVM_MAX_VCPU_IDS (KVM_MAX_VCPUS * KVM_VCPU_ID_RATIO)
/* memory slots that are not exposed to userspace */
#define KVM_PRIVATE_MEM_SLOTS 3

2
arch/x86/kvm/ioapic.c
View File

@ -96,7 +96,7 @@ static unsigned long ioapic_read_indirect(struct kvm_ioapic *ioapic,
static void rtc_irq_eoi_tracking_reset(struct kvm_ioapic *ioapic)
{
ioapic->rtc_status.pending_eoi = 0;
bitmap_zero(ioapic->rtc_status.dest_map.map, KVM_MAX_VCPU_ID);
bitmap_zero(ioapic->rtc_status.dest_map.map, KVM_MAX_VCPU_IDS);
}
static void kvm_rtc_eoi_tracking_restore_all(struct kvm_ioapic *ioapic);

4
arch/x86/kvm/ioapic.h
View File

@ -39,13 +39,13 @@ struct kvm_vcpu;
struct dest_map {
/* vcpu bitmap where IRQ has been sent */
DECLARE_BITMAP(map, KVM_MAX_VCPU_ID);
DECLARE_BITMAP(map, KVM_MAX_VCPU_IDS);
/*
* Vector sent to a given vcpu, only valid when
* the vcpu's bit in map is set
*/
u8 vectors[KVM_MAX_VCPU_ID];
u8 vectors[KVM_MAX_VCPU_IDS];
};

2
arch/x86/kvm/x86.c
View File

@ -4077,7 +4077,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
r = KVM_MAX_VCPUS;
break;
case KVM_CAP_MAX_VCPU_ID:
r = KVM_MAX_VCPU_ID;
r = KVM_MAX_VCPU_IDS;
break;
case KVM_CAP_PV_MMU: /* obsolete */
r = 0;

4
include/linux/kvm_host.h
View File

@ -39,8 +39,8 @@
#include <asm/kvm_host.h>
#include <linux/kvm_dirty_ring.h>
#ifndef KVM_MAX_VCPU_ID
#define KVM_MAX_VCPU_ID KVM_MAX_VCPUS
#ifndef KVM_MAX_VCPU_IDS
#define KVM_MAX_VCPU_IDS KVM_MAX_VCPUS
#endif
/*

2
tools/testing/selftests/kvm/kvm_create_max_vcpus.c
View File

@ -53,7 +53,7 @@ int main(int argc, char *argv[])
kvm_max_vcpu_id = kvm_max_vcpus;
TEST_ASSERT(kvm_max_vcpu_id >= kvm_max_vcpus,
"KVM_MAX_VCPU_ID (%d) must be at least as large as KVM_MAX_VCPUS (%d).",
"KVM_MAX_VCPU_IDS (%d) must be at least as large as KVM_MAX_VCPUS (%d).",
kvm_max_vcpu_id, kvm_max_vcpus);
test_vcpu_creation(0, kvm_max_vcpus);

2
virt/kvm/kvm_main.c
View File

@ -3595,7 +3595,7 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, u32 id)
struct kvm_vcpu *vcpu;
struct page *page;
if (id >= KVM_MAX_VCPU_ID)
if (id >= KVM_MAX_VCPU_IDS)
return -EINVAL;
mutex_lock(&kvm->lock);