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Re: [Qemu-ppc] [PATCH v1] spapr_pci: fix the path while fetching loc-cod
From: |
Alexey Kardashevskiy |
Subject: |
Re: [Qemu-ppc] [PATCH v1] spapr_pci: fix the path while fetching loc-code from host DT |
Date: |
Wed, 8 Nov 2017 13:30:04 +1100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 |
On 08/11/17 00:18, Seeteena Thoufeek wrote:
> The function spapr_phb_vfio_get_loc_code uses wrong path for
> fetching loc-code from host DT
>
> this is the call that needs to be fixed:
> /* Construct and read from host device tree the loc-code */
> path = g_strdup_printf("/proc/device-tree%s/ibm,loc-code", buf);
I do not see why would extra '/' hurt but where does it really fail?
My machines have leading '/' in devspec, do not yours?
address@hidden:~$ cat /sys/bus/pci/devices/0009:03:00.0/devspec && echo -e '\n'
/address@hidden/address@hidden/address@hidden/address@hidden/address@hidden
>
> Signed-off-by: Seeteena Thoufeek <address@hidden>
> ---
> hw/ppc/spapr_pci.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
> index 5a3122a..ae86322 100644
> --- a/hw/ppc/spapr_pci.c
> +++ b/hw/ppc/spapr_pci.c
> @@ -762,7 +762,7 @@ static char *spapr_phb_vfio_get_loc_code(sPAPRPHBState
> *sphb, PCIDevice *pdev)
> g_free(path);
>
> /* Construct and read from host device tree the loc-code */
> - path = g_strdup_printf("/proc/device-tree%s/ibm,loc-code", buf);
> + path = g_strdup_printf("/proc/device-tree/%s/ibm,loc-code", buf);
> g_free(buf);
> if (!g_file_get_contents(path, &buf, NULL, NULL)) {
> goto err_out;
>
--
Alexey