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HV: io: unify vhm_request req and mem_io in vcpu

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The current struct vcpu has two members, namely 'struct vhm_request req' and
'struct mem_io mmio', that hold similar info, including the address, direction, size,
value and status of mmio reqeusts.

As a step towards a unified framework for both MMIO/PIO, this patch unifies
these two members by a tailored version of vhm_reqeust, mostly with the reserved
fields dropped. The definitions to request types, directions and process status
are reused.

Handling errors during emulations will be revisited after the I/O emulation
paths are unified. Thus for this patch the mmio.mmio_status in inherited by
io_req.processed which is not yet properly processed.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Junjie Mao
2018-07-24 19:05:47 +08:00
committed by lijinxia
parent 1915eec632
commit 88f74b5dbb
12 changed files with 180 additions and 181 deletions
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14
hypervisor/include/public/acrn_common.h
View File

@@ -83,6 +83,13 @@ struct pci_request {
int32_t reg;
} __aligned(8);
union vhm_io_request {
struct pio_request pio;
struct pci_request pci;
struct mmio_request mmio;
int64_t reserved1[8];
};
/* vhm_request are 256Bytes aligned */
struct vhm_request {
/* offset: 0bytes - 63bytes */
@@ -90,12 +97,7 @@ struct vhm_request {
int32_t reserved0[15];
/* offset: 64bytes-127bytes */
union {
struct pio_request pio_request;
struct pci_request pci_request;
struct mmio_request mmio_request;
int64_t reserved1[8];
} reqs;
union vhm_io_request reqs;
/* True: valid req which need VHM to process.
* ACRN write, VHM read only