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dma: do not depend on kvm_enabled()

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Memory barriers are needed also by Xen and, when the ioeventfd
bugs are fixed, by TCG as well.

sysemu/kvm.h is not anymore needed in sysemu/dma.h, move it to
the actual users.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2014-09-17 12:21:29 +02:00
parent da16384560
commit 77ac58ddc6
8 changed files with 8 additions and 5 deletions
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5
include/sysemu/dma.h
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@ -15,7 +15,6 @@
#include "hw/hw.h"
#include "block/block.h"
#include "block/accounting.h"
#include "sysemu/kvm.h"
typedef struct ScatterGatherEntry ScatterGatherEntry;
@ -67,9 +66,7 @@ static inline void dma_barrier(AddressSpace *as, DMADirection dir)
* use lighter barriers based on the direction of the
* transfer, the DMA context, etc...
*/
if (kvm_enabled()) {
smp_mb();
}
smp_mb();
}
/* Checks that the given range of addresses is valid for DMA. This is