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| author | Tianyu Lan <Tianyu.Lan@microsoft.com> | 2021-10-25 15:21:08 +0300 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2021-10-28 14:21:33 +0300 |
| commit | 810a521265023a1d5c6c081ea2d216bc63d422f5 (patch) | |
| tree | a62913d60a1a893bcc8bcb4764d1686e0cc82989 /arch/x86/include/asm/mshyperv.h | |
| parent | af788f355e343373490b7d2e361016e7c24a0ffa (diff) | |
| download | linux-810a521265023a1d5c6c081ea2d216bc63d422f5.tar.xz | |
x86/hyperv: Add new hvcall guest address host visibility support
Add new hvcall guest address host visibility support to mark
memory visible to host. Call it inside set_memory_decrypted
/encrypted(). Add HYPERVISOR feature check in the
hv_is_isolation_supported() to optimize in non-virtualization
environment.
Acked-by: Dave Hansen <dave.hansen@intel.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com>
Link: https://lore.kernel.org/r/20211025122116.264793-4-ltykernel@gmail.com
[ wei: fix conflicts with tip ]
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/mshyperv.h')
| -rw-r--r-- | arch/x86/include/asm/mshyperv.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h index 37739a277ac6..f3154ca41ac4 100644 --- a/arch/x86/include/asm/mshyperv.h +++ b/arch/x86/include/asm/mshyperv.h @@ -192,7 +192,7 @@ struct irq_domain *hv_create_pci_msi_domain(void); int hv_map_ioapic_interrupt(int ioapic_id, bool level, int vcpu, int vector, struct hv_interrupt_entry *entry); int hv_unmap_ioapic_interrupt(int ioapic_id, struct hv_interrupt_entry *entry); - +int hv_set_mem_host_visibility(unsigned long addr, int numpages, bool visible); #else /* CONFIG_HYPERV */ static inline void hyperv_init(void) {} static inline void hyperv_setup_mmu_ops(void) {} @@ -209,6 +209,11 @@ static inline int hyperv_flush_guest_mapping_range(u64 as, { return -1; } +static inline int hv_set_mem_host_visibility(unsigned long addr, int numpages, + bool visible) +{ + return -1; +} #endif /* CONFIG_HYPERV */ |