[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] Re: [PATCH RFC] msi: remove range checks
From: |
Isaku Yamahata |
Subject: |
[Qemu-devel] Re: [PATCH RFC] msi: remove range checks |
Date: |
Mon, 25 Oct 2010 16:07:13 +0900 |
User-agent: |
Mutt/1.5.19 (2009-01-05) |
Seems good.
For consistency, the range check in msix_write_config() should
be also removed.
On Mon, Oct 25, 2010 at 08:07:25AM +0200, Michael S. Tsirkin wrote:
> config write handlers should be idempotent.
> So no need for range checks.
>
> Signed-off-by: Michael S. Tsirkin <address@hidden>
> ---
> hw/msi.c | 29 -----------------------------
> 1 files changed, 0 insertions(+), 29 deletions(-)
>
> diff --git a/hw/msi.c b/hw/msi.c
> index a949d82..af8ea44 100644
> --- a/hw/msi.c
> +++ b/hw/msi.c
> @@ -257,35 +257,6 @@ void msi_write_config(PCIDevice *dev, uint32_t addr,
> uint32_t val, int len)
> uint32_t pending;
> int i;
>
> -#ifdef MSI_DEBUG
> - if (ranges_overlap(addr, len, dev->msi_cap, msi_cap_sizeof(flags))) {
> - MSI_DEV_PRINTF(dev, "addr 0x%"PRIx32" val 0x%"PRIx32" len %d\n",
> - addr, val, len);
> - MSI_DEV_PRINTF(dev, "ctrl: 0x%"PRIx16" address: 0x%"PRIx32,
> - flags,
> - pci_get_long(dev->config + msi_address_lo_off(dev)));
> - if (msi64bit) {
> - fprintf(stderr, " addrss-hi: 0x%"PRIx32,
> - pci_get_long(dev->config + msi_address_hi_off(dev)));
> - }
> - fprintf(stderr, " data: 0x%"PRIx16,
> - pci_get_word(dev->config + msi_data_off(dev, msi64bit)));
> - if (flags & PCI_MSI_FLAGS_MASKBIT) {
> - fprintf(stderr, " mask 0x%"PRIx32" pending 0x%"PRIx32,
> - pci_get_long(dev->config + msi_mask_off(dev, msi64bit)),
> - pci_get_long(dev->config + msi_pending_off(dev,
> msi64bit)));
> - }
> - fprintf(stderr, "\n");
> - }
> -#endif
> -
> - /* Are we modified? */
> - if (!(ranges_overlap(addr, len, msi_flags_off(dev), 2) ||
> - (msi_per_vector_mask &&
> - ranges_overlap(addr, len, msi_mask_off(dev, msi64bit), 4)))) {
> - return;
> - }
> -
> if (!(flags & PCI_MSI_FLAGS_ENABLE)) {
> return;
> }
> --
> 1.7.3-rc1
>
--
yamahata