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Merge pull request #5749 from zhlhahaha:2126

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PiperOrigin-RevId: 369686298
This commit is contained in:
gVisor bot
2021-04-21 10:45:44 -07:00
parent c2955339d8 a8584ab67f
commit e2b5de65ce
2 changed files with 20 additions and 23 deletions
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pkg/ring0/pagetables/BUILD
+1 -4
View File
@@ -84,8 +84,5 @@ go_test(
":walker_check_arm64",
],
library = ":pagetables",
deps = [
"//pkg/hostarch",
"//pkg/usermem",
],
deps = ["//pkg/hostarch"],
)
pkg/ring0/pagetables/pagetables_arm64_test.go
+19 -19
View File
@@ -19,24 +19,24 @@ package pagetables
import (
"testing"
"gvisor.dev/gvisor/pkg/usermem"
"gvisor.dev/gvisor/pkg/hostarch"
)
func Test2MAnd4K(t *testing.T) {
pt := New(NewRuntimeAllocator())
// Map a small page and a huge page.
pt.Map(0x400000, pteSize, MapOpts{AccessType: usermem.ReadWrite, User: true}, pteSize*42)
pt.Map(0x0000ff0000000000, pmdSize, MapOpts{AccessType: usermem.Read, User: true}, pmdSize*47)
pt.Map(0x400000, pteSize, MapOpts{AccessType: hostarch.ReadWrite, User: true}, pteSize*42)
pt.Map(0x0000ff0000000000, pmdSize, MapOpts{AccessType: hostarch.Read, User: true}, pmdSize*47)
pt.Map(0xffff000000400000, pteSize, MapOpts{AccessType: usermem.ReadWrite, User: false}, pteSize*42)
pt.Map(0xffffff0000000000, pmdSize, MapOpts{AccessType: usermem.Read, User: false}, pmdSize*47)
pt.Map(0xffff000000400000, pteSize, MapOpts{AccessType: hostarch.ReadWrite, User: false}, pteSize*42)
pt.Map(0xffffff0000000000, pmdSize, MapOpts{AccessType: hostarch.Read, User: false}, pmdSize*47)
checkMappings(t, pt, []mapping{
{0x400000, pteSize, pteSize * 42, MapOpts{AccessType: usermem.ReadWrite, User: true}},
{0x0000ff0000000000, pmdSize, pmdSize * 47, MapOpts{AccessType: usermem.Read, User: true}},
{0xffff000000400000, pteSize, pteSize * 42, MapOpts{AccessType: usermem.ReadWrite, User: false}},
{0xffffff0000000000, pmdSize, pmdSize * 47, MapOpts{AccessType: usermem.Read, User: false}},
{0x400000, pteSize, pteSize * 42, MapOpts{AccessType: hostarch.ReadWrite, User: true}},
{0x0000ff0000000000, pmdSize, pmdSize * 47, MapOpts{AccessType: hostarch.Read, User: true}},
{0xffff000000400000, pteSize, pteSize * 42, MapOpts{AccessType: hostarch.ReadWrite, User: false}},
{0xffffff0000000000, pmdSize, pmdSize * 47, MapOpts{AccessType: hostarch.Read, User: false}},
})
}
@@ -44,12 +44,12 @@ func Test1GAnd4K(t *testing.T) {
pt := New(NewRuntimeAllocator())
// Map a small page and a super page.
pt.Map(0x400000, pteSize, MapOpts{AccessType: usermem.ReadWrite, User: true}, pteSize*42)
pt.Map(0x0000ff0000000000, pudSize, MapOpts{AccessType: usermem.Read, User: true}, pudSize*47)
pt.Map(0x400000, pteSize, MapOpts{AccessType: hostarch.ReadWrite, User: true}, pteSize*42)
pt.Map(0x0000ff0000000000, pudSize, MapOpts{AccessType: hostarch.Read, User: true}, pudSize*47)
checkMappings(t, pt, []mapping{
{0x400000, pteSize, pteSize * 42, MapOpts{AccessType: usermem.ReadWrite, User: true}},
{0x0000ff0000000000, pudSize, pudSize * 47, MapOpts{AccessType: usermem.Read, User: true}},
{0x400000, pteSize, pteSize * 42, MapOpts{AccessType: hostarch.ReadWrite, User: true}},
{0x0000ff0000000000, pudSize, pudSize * 47, MapOpts{AccessType: hostarch.Read, User: true}},
})
}
@@ -57,12 +57,12 @@ func TestSplit1GPage(t *testing.T) {
pt := New(NewRuntimeAllocator())
// Map a super page and knock out the middle.
pt.Map(0x0000ff0000000000, pudSize, MapOpts{AccessType: usermem.Read, User: true}, pudSize*42)
pt.Map(0x0000ff0000000000, pudSize, MapOpts{AccessType: hostarch.Read, User: true}, pudSize*42)
pt.Unmap(hostarch.Addr(0x0000ff0000000000+pteSize), pudSize-(2*pteSize))
checkMappings(t, pt, []mapping{
{0x0000ff0000000000, pteSize, pudSize * 42, MapOpts{AccessType: usermem.Read, User: true}},
{0x0000ff0000000000 + pudSize - pteSize, pteSize, pudSize*42 + pudSize - pteSize, MapOpts{AccessType: usermem.Read, User: true}},
{0x0000ff0000000000, pteSize, pudSize * 42, MapOpts{AccessType: hostarch.Read, User: true}},
{0x0000ff0000000000 + pudSize - pteSize, pteSize, pudSize*42 + pudSize - pteSize, MapOpts{AccessType: hostarch.Read, User: true}},
})
}
@@ -70,11 +70,11 @@ func TestSplit2MPage(t *testing.T) {
pt := New(NewRuntimeAllocator())
// Map a huge page and knock out the middle.
pt.Map(0x0000ff0000000000, pmdSize, MapOpts{AccessType: usermem.Read, User: true}, pmdSize*42)
pt.Map(0x0000ff0000000000, pmdSize, MapOpts{AccessType: hostarch.Read, User: true}, pmdSize*42)
pt.Unmap(hostarch.Addr(0x0000ff0000000000+pteSize), pmdSize-(2*pteSize))
checkMappings(t, pt, []mapping{
{0x0000ff0000000000, pteSize, pmdSize * 42, MapOpts{AccessType: usermem.Read, User: true}},
{0x0000ff0000000000 + pmdSize - pteSize, pteSize, pmdSize*42 + pmdSize - pteSize, MapOpts{AccessType: usermem.Read, User: true}},
{0x0000ff0000000000, pteSize, pmdSize * 42, MapOpts{AccessType: hostarch.Read, User: true}},
{0x0000ff0000000000 + pmdSize - pteSize, pteSize, pmdSize*42 + pmdSize - pteSize, MapOpts{AccessType: hostarch.Read, User: true}},
})
}