gvisor - Container Runtime Sandbox

Age	Commit message (Collapse)	Author
2018-06-01	Move page tables lock into the address space.	Adin Scannell
	This is necessary to prevent races with invalidation. It is currently possible that page tables are garbage collected while paging caches refer to them. We must ensure that pages are held until caches can be invalidated. This is not achieved by this goal alone, but moving locking to outside the page tables themselves is a requisite. PiperOrigin-RevId: 198920784 Change-Id: I66fffecd49cb14aa2e676a84a68cabfc0c8b3e9a
2018-05-30	Restore FS on resume.	Adin Scannell
	Previously, the vCPU FS was always correct because it relied on the reset coming out of the switch. When that doesn't occur, for example, using bluepill directly, the FS value can be incorrect leading to strange corruption. This change is necessary for a subsequent change that enforces guest mode for page table modifications, and it may reduce test flakiness. (The problematic path may occur in tests, but does not occur in the actual platform.) PiperOrigin-RevId: 198648137 Change-Id: I513910a973dd8666c9a1d18cf78990964d6a644d
2018-05-30	Change ring0 & page tables arguments to structs.	Adin Scannell
	This is a refactor of ring0 and ring0/pagetables that changes from individual arguments to opts structures. This should involve no functional changes, but sets the stage for subsequent changes. PiperOrigin-RevId: 198627556 Change-Id: Id4460340f6a73f0c793cd879324398139cd58ae9
2018-05-21	Dramatically improve handling of KVM vCPU pool.	Adin Scannell
	Especially in situations with small numbers of vCPUs, the existing system resulted in excessive thrashing. Now, execution contexts co-ordinate as smoothly as they can to share a small number of cores. PiperOrigin-RevId: 197483323 Change-Id: I0afc0c5363ea9386994355baf3904bf5fe08c56c
2018-05-15	Fix KVM EFAULT handling.	Adin Scannell
	PiperOrigin-RevId: 196781718 Change-Id: I889766eed871929cdc247c6b9aa634398adea9c9
2018-05-15	Simplify KVM invalidation logic.	Adin Scannell
	PiperOrigin-RevId: 196780209 Change-Id: I89f39eec914ce54a7c6c4f28e1b6d5ff5a7dd38d
2018-05-15	Simplify KVM state handling.	Adin Scannell
	This also removes the dependency on tmutex. PiperOrigin-RevId: 196764317 Change-Id: I523fb67454318e1a2ca9da3a08e63bfa3c1eeed3
2018-05-14	Disable INVPCID check; it's not used.	Adin Scannell
	PiperOrigin-RevId: 196615029 Change-Id: Idfa383a9aee6a9397167a4231ce99d0b0e5b9912
2018-05-14	Make KVM system call first check.	Adin Scannell
	PiperOrigin-RevId: 196613447 Change-Id: Ib76902896798f072c3031b0c5cf7b433718928b7
2018-05-14	Simplify KVM host map handling.	Adin Scannell
	PiperOrigin-RevId: 196611084 Change-Id: I6afa6b01e1dcd2aa9776dfc0f910874cc6b8d72c
2018-05-14	Ignore spurious KVM emulation failures.	Adin Scannell
	PiperOrigin-RevId: 196609789 Change-Id: Ie261eea3b7fa05b6c348ca93e229de26cbd4dc7d
2018-05-11	Remove error return from AddressSpace.Release()	Michael Pratt
	PiperOrigin-RevId: 196291289 Change-Id: Ie3487be029850b0b410b82416750853a6c4a2b00
2018-05-07	Fix misspellings	Ian Gudger
	PiperOrigin-RevId: 195742598 Change-Id: Ibd4a8e4394e268c87700b6d1e50b4b37dfce5182
2018-05-01	Set LMA in EFER	Michael Pratt
	As of Linux 4.15 (f29810335965ac1f7bcb501ee2af5f039f792416 KVM/x86: Check input paging mode when cs.l is set), KVM validates that LMA is set along with LME. PiperOrigin-RevId: 195047401 Change-Id: I8b43d8f758a85b1f58ccbd747dcacd4056ef3f66
2018-04-28	Check in gVisor.	Googler
	PiperOrigin-RevId: 194583126 Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463