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Re: [Qemu-devel] [PATCH 2/2] ivshmem: convert option 'use64' to a bit in
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [PATCH 2/2] ivshmem: convert option 'use64' to a bit instead of integer |
Date: |
Tue, 5 Aug 2014 18:00:23 +0200 |
On Mon, Aug 04, 2014 at 05:06:21PM +0200, Levente Kurusa wrote:
> It was expecting an integer, however the sole usecase of it just
> checked whether it was assigned to or not. Hence, remove integerness,
> and add a new bitfield instead.
>
> Signed-off-by: Levente Kurusa <address@hidden>
This might break some existing scripts.
If you want to address this, add a new type that
can accept both integer and bool.
> ---
> hw/misc/ivshmem.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/hw/misc/ivshmem.c b/hw/misc/ivshmem.c
> index 79603c0..eac85ad 100644
> --- a/hw/misc/ivshmem.c
> +++ b/hw/misc/ivshmem.c
> @@ -34,6 +34,7 @@
>
> #define IVSHMEM_IOEVENTFD 0
> #define IVSHMEM_MSI 1
> +#define IVSHMEM_64BIT 2
>
> #define IVSHMEM_PEER 0
> #define IVSHMEM_MASTER 1
> @@ -83,7 +84,6 @@ typedef struct IVShmemState {
> MemoryRegion ivshmem;
> uint64_t ivshmem_size; /* size of shared memory region */
> uint32_t ivshmem_attr;
> - uint32_t ivshmem_64bit;
> int shm_fd; /* shared memory file descriptor */
>
> Peer *peers;
> @@ -706,7 +706,7 @@ static int pci_ivshmem_init(PCIDevice *dev)
> memory_region_init(&s->bar, OBJECT(s), "ivshmem-bar2-container",
> s->ivshmem_size);
> s->ivshmem_attr = PCI_BASE_ADDRESS_SPACE_MEMORY |
> PCI_BASE_ADDRESS_MEM_PREFETCH;
> - if (s->ivshmem_64bit) {
> + if (ivshmem_has_feature(s, IVSHMEM_64BIT)) {
> s->ivshmem_attr |= PCI_BASE_ADDRESS_MEM_TYPE_64;
> }
>
> @@ -804,7 +804,7 @@ static Property ivshmem_properties[] = {
> DEFINE_PROP_BIT("msi", IVShmemState, features, IVSHMEM_MSI, true),
> DEFINE_PROP_STRING("shm", IVShmemState, shmobj),
> DEFINE_PROP_STRING("role", IVShmemState, role),
> - DEFINE_PROP_UINT32("use64", IVShmemState, ivshmem_64bit, 1),
> + DEFINE_PROP_BIT("use64", IVShmemState, features, IVSHMEM_64BIT, true),
> DEFINE_PROP_END_OF_LIST(),
> };
>
> --
> 1.9.3