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| author | Blue Swirl <blauwirbel@gmail.com> | 2011-08-07 19:09:50 +0000 |
|---|---|---|
| committer | Blue Swirl <blauwirbel@gmail.com> | 2011-08-21 19:52:32 +0000 |
| commit | 149e1ea154efebf0b3a7aae20538ce7673d78b77 (patch) | |
| tree | 97ec753688ca8128d11b7b0ecb5e97058178ae50 /hw/sun4m_iommu.c | |
| parent | 07dd0035d83727ed2b1922a85cd5aea5b010025b (diff) | |
| download | qemu-149e1ea154efebf0b3a7aae20538ce7673d78b77.tar.gz | |
sun4m_iommu: avoid structure holes spotted by pahole
Report from pahole on amd64 host:
struct IOMMUState {
SysBusDevice busdev; /* 0 5648 */
/* --- cacheline 88 boundary (5632 bytes) was 16 bytes ago --- */
uint32_t regs[4096]; /* 5648 16384 */
/* --- cacheline 344 boundary (22016 bytes) was 16 bytes ago --- */
target_phys_addr_t iostart; /* 22032 8 */
uint32_t version; /* 22040 4 */
/* XXX 4 bytes hole, try to pack */
qemu_irq irq; /* 22048 8 */
/* size: 22056, cachelines: 345 */
/* sum members: 22052, holes: 1, sum holes: 4 */
/* last cacheline: 40 bytes */
}; /* definitions: 1 */
Fix by rearranging the structure to avoid padding.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'hw/sun4m_iommu.c')
| -rw-r--r-- | hw/sun4m_iommu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/sun4m_iommu.c b/hw/sun4m_iommu.c index 7f5dad535c..6eeadfa184 100644 --- a/hw/sun4m_iommu.c +++ b/hw/sun4m_iommu.c @@ -130,8 +130,8 @@ typedef struct IOMMUState { SysBusDevice busdev; uint32_t regs[IOMMU_NREGS]; target_phys_addr_t iostart; - uint32_t version; qemu_irq irq; + uint32_t version; } IOMMUState; static uint32_t iommu_mem_readl(void *opaque, target_phys_addr_t addr) |