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DM NPK: use a slice (8 masters) as the minimal unit for NPK virt

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To align with the configuration of the HOST tool, the SW masters
are organized in slices of 8 masters each.
The slice is also the minimal unit to allocate the SW masters for
each UOS.
The patch is to update the parameter checking function.

Tracked-On: #1138
Signed-off-by: Zhi Jin <zhi.jin@intel.com>
Reviewed-by: Chen Gang <gang.c.chen@intel.com>
This commit is contained in:
Zhi Jin 2018-08-23 09:25:44 +08:00 committed by lijinxia
parent d8c97c1b2d
commit 9a276592fb
1 changed files with 7 additions and 6 deletions
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13
devicemodel/hw/pci/npk.c
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@ -159,11 +159,11 @@ static inline uint32_t *offset2reg(uint64_t offset)
return reg;
}
static inline int valid_param(int m_off, int m_num)
static inline int valid_param(uint32_t m_off, uint32_t m_num)
{
/* 256-aligned, no less than 256, no overflow */
if (!(m_off & 0xFF) && !(m_num & 0xFF) && (m_off >> 8) > 0
&& (m_num >> 8) > 0 && m_off + m_num <= NPK_SW_MSTR_NUM)
/* 8-aligned, no less than 8, no overflow */
if (((m_off & 0x7U) == 0) && ((m_num & 0x7U) == 0) && (m_off > 0x7U)
&& (m_num > 0x7U) && (m_off + m_num <= NPK_SW_MSTR_NUM))
return 1;
return 0;
@ -177,11 +177,12 @@ static inline int valid_param(int m_off, int m_num)
*/
static int pci_npk_init(struct vmctx *ctx, struct pci_vdev *dev, char *opts)
{
int i, b, s, f, fd, ret, m_off, m_num, error = -1;
int i, b, s, f, fd, ret, error = -1;
DIR *dir;
struct dirent *dent;
char name[PATH_MAX];
uint8_t h_cfg[PCI_REGMAX + 1];
uint32_t m_off, m_num;
uint64_t sw_bar_base;
struct npk_reg_default_val *d;
@ -210,7 +211,7 @@ static int pci_npk_init(struct vmctx *ctx, struct pci_vdev *dev, char *opts)
*/
/* get the master offset and the number for this guest */
if (opts == NULL || sscanf(opts, "%d/%d", &m_off, &m_num) != 2
if ((opts == NULL) || (sscanf(opts, "%u/%u", &m_off, &m_num) != 2)
|| !valid_param(m_off, m_num)) {
m_off = 256;
m_num = 256;