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lguest: map_switcher_in_guest() per-vcpu

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The switcher needs to be mapped per-vcpu, because different vcpus
will potentially have different page tables (they don't have to,
because threads will share the same).

So our first step is the make the function receive a vcpu struct

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Glauber de Oliveira Costa
2008-01-07 11:05:30 -02:00
committed by Rusty Russell
parent 177e449dc5
commit 0c78441cf4
3 changed files with 4 additions and 3 deletions
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3
drivers/lguest/page_tables.c
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@@ -634,8 +634,9 @@ void free_guest_pagetable(struct lguest *lg)
* Guest (and not the pages for other CPUs). We have the appropriate PTE pages
* for each CPU already set up, we just need to hook them in now we know which
* Guest is about to run on this CPU. */
void map_switcher_in_guest(struct lguest *lg, struct lguest_pages *pages)
void map_switcher_in_guest(struct lg_cpu *cpu, struct lguest_pages *pages)
{
struct lguest *lg = cpu->lg;
pte_t *switcher_pte_page = __get_cpu_var(switcher_pte_pages);
pgd_t switcher_pgd;
pte_t regs_pte;