[PATCH 04/12] KVM: rename CONFIG_HAVE_KVM_GMEM_* to CONFIG_HAVE_KVM_ARCH_GMEM_*

Paolo Bonzini
2024-07-11T22:28:06Z

Add "ARCH" to the symbols; shortly, the "prepare" phase will include both
the arch-independent step to clear out contents left in the page by the
host, and the arch-dependent step enabled by CONFIG_HAVE_KVM_GMEM_PREPARE.
For consistency do the same for CONFIG_HAVE_KVM_GMEM_INVALIDATE as well.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
arch/x86/kvm/Kconfig | 4 ++--
arch/x86/kvm/x86.c | 4 ++--
include/linux/kvm_host.h | 4 ++--
virt/kvm/Kconfig | 4 ++--
virt/kvm/guest_memfd.c | 6 +++---
5 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
index 4287a8071a3a..472a1537b7a9 100644
--- a/arch/x86/kvm/Kconfig
+++ b/arch/x86/kvm/Kconfig
@@ -141,8 +141,8 @@ config KVM_AMD_SEV
depends on CRYPTO_DEV_SP_PSP && !(KVM_AMD=y && CRYPTO_DEV_CCP_DD=m)
select ARCH_HAS_CC_PLATFORM
select KVM_GENERIC_PRIVATE_MEM
- select HAVE_KVM_GMEM_PREPARE
- select HAVE_KVM_GMEM_INVALIDATE
+ select HAVE_KVM_ARCH_GMEM_PREPARE
+ select HAVE_KVM_ARCH_GMEM_INVALIDATE
help
Provides support for launching Encrypted VMs (SEV) and Encrypted VMs
with Encrypted State (SEV-ES) on AMD processors.
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index a6968eadd418..a1c85591f92c 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -13603,7 +13603,7 @@ bool kvm_arch_no_poll(struct kvm_vcpu *vcpu)
}
EXPORT_SYMBOL_GPL(kvm_arch_no_poll);

-#ifdef CONFIG_HAVE_KVM_GMEM_PREPARE
+#ifdef CONFIG_HAVE_KVM_ARCH_GMEM_PREPARE
bool kvm_arch_gmem_prepare_needed(struct kvm *kvm)
{
return kvm->arch.vm_type == KVM_X86_SNP_VM;
@@ -13615,7 +13615,7 @@ int kvm_arch_gmem_prepare(struct kvm *kvm, gfn_t gfn, kvm_pfn_t pfn, int max_ord
}
#endif

-#ifdef CONFIG_HAVE_KVM_GMEM_INVALIDATE
+#ifdef CONFIG_HAVE_KVM_ARCH_GMEM_INVALIDATE
void kvm_arch_gmem_invalidate(kvm_pfn_t start, kvm_pfn_t end)
{
static_call_cond(kvm_x86_gmem_invalidate)(start, end);
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index c3c922bf077f..eb8404e9aa03 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -2441,7 +2441,7 @@ static inline int kvm_gmem_get_pfn(struct kvm *kvm,
}
#endif /* CONFIG_KVM_PRIVATE_MEM */

-#ifdef CONFIG_HAVE_KVM_GMEM_PREPARE
+#ifdef CONFIG_HAVE_KVM_ARCH_GMEM_PREPARE
int kvm_arch_gmem_prepare(struct kvm *kvm, gfn_t gfn, kvm_pfn_t pfn, int max_order);
bool kvm_arch_gmem_prepare_needed(struct kvm *kvm);
#endif
@@ -2473,7 +2473,7 @@ typedef int (*kvm_gmem_populate_cb)(struct kvm *kvm, gfn_t gfn, kvm_pfn_t pfn,
long kvm_gmem_populate(struct kvm *kvm, gfn_t gfn, void __user *src, long npages,
kvm_gmem_populate_cb post_populate, void *opaque);

-#ifdef CONFIG_HAVE_KVM_GMEM_INVALIDATE
+#ifdef CONFIG_HAVE_KVM_ARCH_GMEM_INVALIDATE
void kvm_arch_gmem_invalidate(kvm_pfn_t start, kvm_pfn_t end);
#endif

diff --git a/virt/kvm/Kconfig b/virt/kvm/Kconfig
index b14e14cdbfb9..fd6a3010afa8 100644
--- a/virt/kvm/Kconfig
+++ b/virt/kvm/Kconfig
@@ -113,10 +113,10 @@ config KVM_GENERIC_PRIVATE_MEM
select KVM_PRIVATE_MEM
bool

-config HAVE_KVM_GMEM_PREPARE
+config HAVE_KVM_ARCH_GMEM_PREPARE
bool
depends on KVM_PRIVATE_MEM

-config HAVE_KVM_GMEM_INVALIDATE
+config HAVE_KVM_ARCH_GMEM_INVALIDATE
bool
depends on KVM_PRIVATE_MEM
diff --git a/virt/kvm/guest_memfd.c b/virt/kvm/guest_memfd.c
index 5221b584288f..76139332f2f3 100644
--- a/virt/kvm/guest_memfd.c
+++ b/virt/kvm/guest_memfd.c
@@ -27,7 +27,7 @@ static inline kvm_pfn_t folio_file_pfn(struct folio *folio, pgoff_t index)

static int kvm_gmem_prepare_folio(struct inode *inode, pgoff_t index, struct folio *folio)
{
-#ifdef CONFIG_HAVE_KVM_GMEM_PREPARE
+#ifdef CONFIG_HAVE_KVM_ARCH_GMEM_PREPARE
struct list_head *gmem_list = &inode->i_mapping->i_private_list;
struct kvm_gmem *gmem;

@@ -353,7 +353,7 @@ static int kvm_gmem_error_folio(struct address_space *mapping, struct folio *fol
return MF_DELAYED;
}

-#ifdef CONFIG_HAVE_KVM_GMEM_INVALIDATE
+#ifdef CONFIG_HAVE_KVM_ARCH_GMEM_INVALIDATE
static void kvm_gmem_free_folio(struct folio *folio)
{
struct page *page = folio_page(folio, 0);
@@ -368,7 +368,7 @@ static const struct address_space_operations kvm_gmem_aops = {
.dirty_folio = noop_dirty_folio,
.migrate_folio = kvm_gmem_migrate_folio,
.error_remove_folio = kvm_gmem_error_folio,
-#ifdef CONFIG_HAVE_KVM_GMEM_INVALIDATE
+#ifdef CONFIG_HAVE_KVM_ARCH_GMEM_INVALIDATE
.free_folio = kvm_gmem_free_folio,
#endif
};
--
2.43.0