RFC qemu: arm: Migration between machines with different MIDR values
Get series with b4
b4 am [email protected]Versions newest first
- v2 RFC Latest2 patches 1 replyIn review
Patches in v2 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | arm: Introduce hostinvariant command line optionqemu-options.hx vl.c | +37 | 1 reply | |
| 2/2 | arm: program migrated guests' invariant registers with host onestarget/ | +13 | 0 replies |
Reviews trailers per patch
1 of 2 patches has a Reviewed-by or Acked-by.
| Patch | Juan Quintela |
|---|---|
| 1/2 | R-b |
| 2/2 |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [Qemu-devel] [PATCH v2 0/2] [RFC] qemu: arm: Migration between machines with different MIDR values
From: Manish Jaggi <[email protected]>
QEMU on arm systems use -machine virt -cpu host option for a VM. Migration thus is limited between machines with same cpu.
This is a limitation if migration is desired between cpus which are of same family and have only few difeerences like bug fixes which have no effect on VM operation. They just differ in say MIDR values.
This patchset introduces an option -hostinvariant whic along with a new KVM error code -KVM_EINVARIANT will enable qemu to replace migrated guests' invariant regiters with destination machines cpu regs.
This feature is user opt-in. So user is aware of the differences in MIDR.
Changes since v1-
This patch is revised after previous RFC comments
https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03546.html
Manish Jaggi (2):
arm: Introduce hostinvariant command line option
arm: program migrated guests' invariant registers with host ones
qemu-options.hx | 13 +++++++++++++ target/arm/kvm.c | 15 +++++++++++++-- vl.c | 24 ++++++++++++++++++++++++ 3 files changed, 50 insertions(+), 2 deletions(-)
Signature · 1 line
1.8.3.1