hcl::ioctl

Struct MshvVtl

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pub struct MshvVtl { /* private fields */ }
Expand description

An open mshv_vtl device file.

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impl MshvVtl

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pub fn pvalidate_pages( &self, range: MemoryRange, validate: bool, terminate_on_failure: bool, ) -> Result<(), SnpPageError>

Execute the pvalidate instruction on the specified memory range.

The range must not be mapped in the kernel as RAM.

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pub fn rmpadjust_pages( &self, range: MemoryRange, value: SevRmpAdjust, terminate_on_failure: bool, ) -> Result<(), SnpPageError>

Execute the rmpadjust instruction on the specified memory range.

The range must not be mapped in the kernel as RAM.

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pub fn rmpquery_page( &self, gpa: u64, vtl: GuestVtl, ) -> Result<SevRmpAdjust, SnpPageError>

Gets the current vtl permissions for a page. Note: only supported on Genoa+

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impl MshvVtl

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pub fn tdx_set_page_attributes( &self, range: MemoryRange, attributes: TdgMemPageGpaAttr, mask: TdgMemPageAttrWriteR8, ) -> Result<(), TdCallResultCode>

Issues a tdcall to set page attributes.

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pub fn tdx_accept_pages( &self, range: MemoryRange, attributes: Option<(TdgMemPageGpaAttr, TdgMemPageAttrWriteR8)>, ) -> Result<(), AcceptPagesError>

Issues a tdcall to accept pages, optionally also setting attributes.

These operations are combined because this code tries accepting at 2MB granularity first and then falls back to 4KB. A separate call to Self::tdx_set_page_attributes has to re-derive the appropriate granularity.

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impl MshvVtl

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pub fn add_vtl0_memory( &self, mem_range: MemoryRange, shared: bool, ) -> Result<(), Error>

Adds the VTL0 memory as a ZONE_DEVICE memory (I/O) to support DMA from the guest.

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impl Debug for MshvVtl

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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