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virtio-devices: Rename address translation function for more clarity

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Renaming translate() to translate_gva() to clarify we want to translate
a GVA address into a GPA.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf
2022-04-04 13:35:24 +02:00
parent 16c525b2c0
commit 059e787cb5
11 changed files with 48 additions and 33 deletions
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11
vm-virtio/src/lib.rs
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@@ -94,19 +94,18 @@ impl fmt::Display for VirtioDeviceType {
/// Trait for devices with access to data in memory being limited and/or
/// translated.
pub trait AccessPlatform: Send + Sync + Debug {
/// Provide a way to translate address ranges.
fn translate(&self, base: u64, size: u64) -> std::result::Result<u64, std::io::Error>;
/// Provide a way to translate GVA address ranges into GPAs.
fn translate_gva(&self, base: u64, size: u64) -> std::result::Result<u64, std::io::Error>;
}
pub trait Translatable {
#[must_use]
fn translate(&self, access_platform: Option<&Arc<dyn AccessPlatform>>, len: usize) -> Self;
fn translate_gva(&self, access_platform: Option<&Arc<dyn AccessPlatform>>, len: usize) -> Self;
}
impl Translatable for GuestAddress {
fn translate(&self, access_platform: Option<&Arc<dyn AccessPlatform>>, len: usize) -> Self {
fn translate_gva(&self, access_platform: Option<&Arc<dyn AccessPlatform>>, len: usize) -> Self {
if let Some(access_platform) = access_platform {
GuestAddress(access_platform.translate(self.0, len as u64).unwrap())
GuestAddress(access_platform.translate_gva(self.0, len as u64).unwrap())
} else {
*self
}