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exec: RCUify AddressSpaceDispatch

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Note that even after this patch, most callers of address_space_*
functions must still be under the big QEMU lock, otherwise the memory
region returned by address_space_translate can disappear as soon as
address_space_translate returns.  This will be fixed in the next part
of this series.

Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2015-01-21 12:09:14 +01:00
parent 9d82b5a792
commit 79e2b9aecc
8 changed files with 63 additions and 12 deletions
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8
cputlb.c
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@ -243,8 +243,12 @@ static void tlb_add_large_page(CPUArchState *env, target_ulong vaddr,
}
/* Add a new TLB entry. At most one entry for a given virtual address
is permitted. Only a single TARGET_PAGE_SIZE region is mapped, the
supplied size is only used by tlb_flush_page. */
* is permitted. Only a single TARGET_PAGE_SIZE region is mapped, the
* supplied size is only used by tlb_flush_page.
*
* Called from TCG-generated code, which is under an RCU read-side
* critical section.
*/
void tlb_set_page(CPUState *cpu, target_ulong vaddr,
hwaddr paddr, int prot,
int mmu_idx, target_ulong size)