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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-02 23:14:04 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-02 23:14:04 +0200 |
| commit | 736a2dd2571ac56b11ed95a7814d838d5311be04 (patch) | |
| tree | de10d107025970c6e51d5b6faeba799ed4b9caae /arch/x86/include | |
| parent | Merge tag 'vfio-for-v3.10' of git://github.com/awilliam/linux-vfio (diff) | |
| parent | caif_virtio: Remove bouncing email addresses (diff) | |
| download | linux-736a2dd2571ac56b11ed95a7814d838d5311be04.tar.xz linux-736a2dd2571ac56b11ed95a7814d838d5311be04.zip | |
Merge tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull virtio & lguest updates from Rusty Russell:
"Lots of virtio work which wasn't quite ready for last merge window.
Plus I dived into lguest again, reworking the pagetable code so we can
move the switcher page: our fixmaps sometimes take more than 2MB now..."
Ugh. Annoying conflicts with the tcm_vhost -> vhost_scsi rename.
Hopefully correctly resolved.
* tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (57 commits)
caif_virtio: Remove bouncing email addresses
lguest: improve code readability in lg_cpu_start.
virtio-net: fill only rx queues which are being used
lguest: map Switcher below fixmap.
lguest: cache last cpu we ran on.
lguest: map Switcher text whenever we allocate a new pagetable.
lguest: don't share Switcher PTE pages between guests.
lguest: expost switcher_pages array (as lg_switcher_pages).
lguest: extract shadow PTE walking / allocating.
lguest: make check_gpte et. al return bool.
lguest: assume Switcher text is a single page.
lguest: rename switcher_page to switcher_pages.
lguest: remove RESERVE_MEM constant.
lguest: check vaddr not pgd for Switcher protection.
lguest: prepare to make SWITCHER_ADDR a variable.
virtio: console: replace EMFILE with EBUSY for already-open port
virtio-scsi: reset virtqueue affinity when doing cpu hotplug
virtio-scsi: introduce multiqueue support
virtio-scsi: push vq lock/unlock into virtscsi_vq_done
virtio-scsi: pass struct virtio_scsi to virtqueue completion function
...
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/lguest.h | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/arch/x86/include/asm/lguest.h b/arch/x86/include/asm/lguest.h index 0d97deba1e35..e2d4a4afa8c3 100644 --- a/arch/x86/include/asm/lguest.h +++ b/arch/x86/include/asm/lguest.h @@ -11,18 +11,11 @@ #define GUEST_PL 1 -/* Every guest maps the core switcher code. */ -#define SHARED_SWITCHER_PAGES \ - DIV_ROUND_UP(end_switcher_text - start_switcher_text, PAGE_SIZE) -/* Pages for switcher itself, then two pages per cpu */ -#define TOTAL_SWITCHER_PAGES (SHARED_SWITCHER_PAGES + 2 * nr_cpu_ids) - -/* We map at -4M (-2M for PAE) for ease of mapping (one PTE page). */ -#ifdef CONFIG_X86_PAE -#define SWITCHER_ADDR 0xFFE00000 -#else -#define SWITCHER_ADDR 0xFFC00000 -#endif +/* Page for Switcher text itself, then two pages per cpu */ +#define TOTAL_SWITCHER_PAGES (1 + 2 * nr_cpu_ids) + +/* Where we map the Switcher, in both Host and Guest. */ +extern unsigned long switcher_addr; /* Found in switcher.S */ extern unsigned long default_idt_entries[]; |