Replace occurrences of mem_encrypt_active() with calls to prot_guest_has() with the PATTR_MEM_ENCRYPT attribute.
Cc: Thomas Gleixner tglx@linutronix.de Cc: Ingo Molnar mingo@redhat.com Cc: Borislav Petkov bp@alien8.de Cc: Dave Hansen dave.hansen@linux.intel.com Cc: Andy Lutomirski luto@kernel.org Cc: Peter Zijlstra peterz@infradead.org Cc: David Airlie airlied@linux.ie Cc: Daniel Vetter daniel@ffwll.ch Cc: Maarten Lankhorst maarten.lankhorst@linux.intel.com Cc: Maxime Ripard mripard@kernel.org Cc: Thomas Zimmermann tzimmermann@suse.de Cc: VMware Graphics linux-graphics-maintainer@vmware.com Cc: Joerg Roedel joro@8bytes.org Cc: Will Deacon will@kernel.org Cc: Dave Young dyoung@redhat.com Cc: Baoquan He bhe@redhat.com Signed-off-by: Tom Lendacky thomas.lendacky@amd.com --- arch/x86/kernel/head64.c | 4 ++-- arch/x86/mm/ioremap.c | 4 ++-- arch/x86/mm/mem_encrypt.c | 5 ++--- arch/x86/mm/pat/set_memory.c | 3 ++- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 4 +++- drivers/gpu/drm/drm_cache.c | 4 ++-- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 4 ++-- drivers/gpu/drm/vmwgfx/vmwgfx_msg.c | 6 +++--- drivers/iommu/amd/iommu.c | 3 ++- drivers/iommu/amd/iommu_v2.c | 3 ++- drivers/iommu/iommu.c | 3 ++- fs/proc/vmcore.c | 6 +++--- kernel/dma/swiotlb.c | 4 ++-- 13 files changed, 29 insertions(+), 24 deletions(-)
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c index de01903c3735..cafed6456d45 100644 --- a/arch/x86/kernel/head64.c +++ b/arch/x86/kernel/head64.c @@ -19,7 +19,7 @@ #include <linux/start_kernel.h> #include <linux/io.h> #include <linux/memblock.h> -#include <linux/mem_encrypt.h> +#include <linux/protected_guest.h> #include <linux/pgtable.h>
#include <asm/processor.h> @@ -285,7 +285,7 @@ unsigned long __head __startup_64(unsigned long physaddr, * there is no need to zero it after changing the memory encryption * attribute. */ - if (mem_encrypt_active()) { + if (prot_guest_has(PATTR_MEM_ENCRYPT)) { vaddr = (unsigned long)__start_bss_decrypted; vaddr_end = (unsigned long)__end_bss_decrypted; for (; vaddr < vaddr_end; vaddr += PMD_SIZE) { diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index 0f2d5ace5986..5e1c1f5cbbe8 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -693,7 +693,7 @@ static bool __init early_memremap_is_setup_data(resource_size_t phys_addr, bool arch_memremap_can_ram_remap(resource_size_t phys_addr, unsigned long size, unsigned long flags) { - if (!mem_encrypt_active()) + if (!prot_guest_has(PATTR_MEM_ENCRYPT)) return true;
if (flags & MEMREMAP_ENC) @@ -723,7 +723,7 @@ pgprot_t __init early_memremap_pgprot_adjust(resource_size_t phys_addr, { bool encrypted_prot;
- if (!mem_encrypt_active()) + if (!prot_guest_has(PATTR_MEM_ENCRYPT)) return prot;
encrypted_prot = true; diff --git a/arch/x86/mm/mem_encrypt.c b/arch/x86/mm/mem_encrypt.c index 451de8e84fce..0f1533dbe81c 100644 --- a/arch/x86/mm/mem_encrypt.c +++ b/arch/x86/mm/mem_encrypt.c @@ -364,8 +364,7 @@ int __init early_set_memory_encrypted(unsigned long vaddr, unsigned long size) /* * SME and SEV are very similar but they are not the same, so there are * times that the kernel will need to distinguish between SME and SEV. The - * sme_active() and sev_active() functions are used for this. When a - * distinction isn't needed, the mem_encrypt_active() function can be used. + * sme_active() and sev_active() functions are used for this. * * The trampoline code is a good example for this requirement. Before * paging is activated, SME will access all memory as decrypted, but SEV @@ -451,7 +450,7 @@ void __init mem_encrypt_free_decrypted_mem(void) * The unused memory range was mapped decrypted, change the encryption * attribute from decrypted to encrypted before freeing it. */ - if (mem_encrypt_active()) { + if (sme_me_mask) { r = set_memory_encrypted(vaddr, npages); if (r) { pr_warn("failed to free unused decrypted pages\n"); diff --git a/arch/x86/mm/pat/set_memory.c b/arch/x86/mm/pat/set_memory.c index ad8a5c586a35..6925f2bb4be1 100644 --- a/arch/x86/mm/pat/set_memory.c +++ b/arch/x86/mm/pat/set_memory.c @@ -18,6 +18,7 @@ #include <linux/libnvdimm.h> #include <linux/vmstat.h> #include <linux/kernel.h> +#include <linux/protected_guest.h>
#include <asm/e820/api.h> #include <asm/processor.h> @@ -1986,7 +1987,7 @@ static int __set_memory_enc_dec(unsigned long addr, int numpages, bool enc) int ret;
/* Nothing to do if memory encryption is not active */ - if (!mem_encrypt_active()) + if (!prot_guest_has(PATTR_MEM_ENCRYPT)) return 0;
/* Should not be working on unaligned addresses */ diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index abb928894eac..8407224717df 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -38,6 +38,7 @@ #include <drm/drm_probe_helper.h> #include <linux/mmu_notifier.h> #include <linux/suspend.h> +#include <linux/protected_guest.h>
#include "amdgpu.h" #include "amdgpu_irq.h" @@ -1239,7 +1240,8 @@ static int amdgpu_pci_probe(struct pci_dev *pdev, * however, SME requires an indirect IOMMU mapping because the encryption * bit is beyond the DMA mask of the chip. */ - if (mem_encrypt_active() && ((flags & AMD_ASIC_MASK) == CHIP_RAVEN)) { + if (prot_guest_has(PATTR_MEM_ENCRYPT) && + ((flags & AMD_ASIC_MASK) == CHIP_RAVEN)) { dev_info(&pdev->dev, "SME is not compatible with RAVEN\n"); return -ENOTSUPP; diff --git a/drivers/gpu/drm/drm_cache.c b/drivers/gpu/drm/drm_cache.c index 546599f19a93..4d01d44012fd 100644 --- a/drivers/gpu/drm/drm_cache.c +++ b/drivers/gpu/drm/drm_cache.c @@ -31,7 +31,7 @@ #include <linux/dma-buf-map.h> #include <linux/export.h> #include <linux/highmem.h> -#include <linux/mem_encrypt.h> +#include <linux/protected_guest.h> #include <xen/xen.h>
#include <drm/drm_cache.h> @@ -204,7 +204,7 @@ bool drm_need_swiotlb(int dma_bits) * Enforce dma_alloc_coherent when memory encryption is active as well * for the same reasons as for Xen paravirtual hosts. */ - if (mem_encrypt_active()) + if (prot_guest_has(PATTR_MEM_ENCRYPT)) return true;
for (tmp = iomem_resource.child; tmp; tmp = tmp->sibling) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index dde8b35bb950..06ec95a650ba 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -29,7 +29,7 @@ #include <linux/dma-mapping.h> #include <linux/module.h> #include <linux/pci.h> -#include <linux/mem_encrypt.h> +#include <linux/protected_guest.h>
#include <drm/ttm/ttm_range_manager.h> #include <drm/drm_aperture.h> @@ -634,7 +634,7 @@ static int vmw_dma_select_mode(struct vmw_private *dev_priv) [vmw_dma_map_bind] = "Giving up DMA mappings early."};
/* TTM currently doesn't fully support SEV encryption. */ - if (mem_encrypt_active()) + if (prot_guest_has(PATTR_MEM_ENCRYPT)) return -EINVAL;
if (vmw_force_coherent) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c index 3d08f5700bdb..0c70573d3dce 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c @@ -28,7 +28,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> -#include <linux/mem_encrypt.h> +#include <linux/protected_guest.h>
#include <asm/hypervisor.h>
@@ -153,7 +153,7 @@ static unsigned long vmw_port_hb_out(struct rpc_channel *channel, unsigned long msg_len = strlen(msg);
/* HB port can't access encrypted memory. */ - if (hb && !mem_encrypt_active()) { + if (hb && !prot_guest_has(PATTR_MEM_ENCRYPT)) { unsigned long bp = channel->cookie_high;
si = (uintptr_t) msg; @@ -208,7 +208,7 @@ static unsigned long vmw_port_hb_in(struct rpc_channel *channel, char *reply, unsigned long si, di, eax, ebx, ecx, edx;
/* HB port can't access encrypted memory */ - if (hb && !mem_encrypt_active()) { + if (hb && !prot_guest_has(PATTR_MEM_ENCRYPT)) { unsigned long bp = channel->cookie_low;
si = channel->cookie_high; diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index 811a49a95d04..def63a8deab4 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -31,6 +31,7 @@ #include <linux/irqdomain.h> #include <linux/percpu.h> #include <linux/io-pgtable.h> +#include <linux/protected_guest.h> #include <asm/irq_remapping.h> #include <asm/io_apic.h> #include <asm/apic.h> @@ -2178,7 +2179,7 @@ static int amd_iommu_def_domain_type(struct device *dev) * active, because some of those devices (AMD GPUs) don't have the * encryption bit in their DMA-mask and require remapping. */ - if (!mem_encrypt_active() && dev_data->iommu_v2) + if (!prot_guest_has(PATTR_MEM_ENCRYPT) && dev_data->iommu_v2) return IOMMU_DOMAIN_IDENTITY;
return 0; diff --git a/drivers/iommu/amd/iommu_v2.c b/drivers/iommu/amd/iommu_v2.c index f8d4ad421e07..ac359bc98523 100644 --- a/drivers/iommu/amd/iommu_v2.c +++ b/drivers/iommu/amd/iommu_v2.c @@ -16,6 +16,7 @@ #include <linux/wait.h> #include <linux/pci.h> #include <linux/gfp.h> +#include <linux/protected_guest.h>
#include "amd_iommu.h"
@@ -741,7 +742,7 @@ int amd_iommu_init_device(struct pci_dev *pdev, int pasids) * When memory encryption is active the device is likely not in a * direct-mapped domain. Forbid using IOMMUv2 functionality for now. */ - if (mem_encrypt_active()) + if (prot_guest_has(PATTR_MEM_ENCRYPT)) return -ENODEV;
if (!amd_iommu_v2_supported()) diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 5419c4b9f27a..ddbedb1b5b6b 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -23,6 +23,7 @@ #include <linux/property.h> #include <linux/fsl/mc.h> #include <linux/module.h> +#include <linux/protected_guest.h> #include <trace/events/iommu.h>
static struct kset *iommu_group_kset; @@ -127,7 +128,7 @@ static int __init iommu_subsys_init(void) else iommu_set_default_translated(false);
- if (iommu_default_passthrough() && mem_encrypt_active()) { + if (iommu_default_passthrough() && prot_guest_has(PATTR_MEM_ENCRYPT)) { pr_info("Memory encryption detected - Disabling default IOMMU Passthrough\n"); iommu_set_default_translated(false); } diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c index 9a15334da208..b466f543dc00 100644 --- a/fs/proc/vmcore.c +++ b/fs/proc/vmcore.c @@ -26,7 +26,7 @@ #include <linux/vmalloc.h> #include <linux/pagemap.h> #include <linux/uaccess.h> -#include <linux/mem_encrypt.h> +#include <linux/protected_guest.h> #include <asm/io.h> #include "internal.h"
@@ -177,7 +177,7 @@ ssize_t __weak elfcorehdr_read(char *buf, size_t count, u64 *ppos) */ ssize_t __weak elfcorehdr_read_notes(char *buf, size_t count, u64 *ppos) { - return read_from_oldmem(buf, count, ppos, 0, mem_encrypt_active()); + return read_from_oldmem(buf, count, ppos, 0, prot_guest_has(PATTR_MEM_ENCRYPT)); }
/* @@ -378,7 +378,7 @@ static ssize_t __read_vmcore(char *buffer, size_t buflen, loff_t *fpos, buflen); start = m->paddr + *fpos - m->offset; tmp = read_from_oldmem(buffer, tsz, &start, - userbuf, mem_encrypt_active()); + userbuf, prot_guest_has(PATTR_MEM_ENCRYPT)); if (tmp < 0) return tmp; buflen -= tsz; diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c index e50df8d8f87e..2e8dee23a624 100644 --- a/kernel/dma/swiotlb.c +++ b/kernel/dma/swiotlb.c @@ -34,7 +34,7 @@ #include <linux/highmem.h> #include <linux/gfp.h> #include <linux/scatterlist.h> -#include <linux/mem_encrypt.h> +#include <linux/protected_guest.h> #include <linux/set_memory.h> #ifdef CONFIG_DEBUG_FS #include <linux/debugfs.h> @@ -515,7 +515,7 @@ phys_addr_t swiotlb_tbl_map_single(struct device *dev, phys_addr_t orig_addr, if (!mem) panic("Can not allocate SWIOTLB buffer earlier and can't now provide you with the DMA bounce buffer");
- if (mem_encrypt_active()) + if (prot_guest_has(PATTR_MEM_ENCRYPT)) pr_warn_once("Memory encryption is active and system is using DMA bounce buffers\n");
if (mapping_size > alloc_size) {