xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

powerpc/xive: add OPAL extensions for the XIVE native exploitation support

Browse Source 
The support for XIVE native exploitation mode in Linux/KVM needs a
couple more OPAL calls to get and set the state of the XIVE internal
structures being used by a sPAPR guest.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Cédric Le Goater
2019-04-10 19:04:33 +02:00
committed by Michael Ellerman
parent 8c2ffd9174
commit 88ec6b93c8
5 changed files with 127 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
arch/powerpc/include/asm/xive.h
View File

@@ -109,12 +109,26 @@ extern int xive_native_configure_queue(u32 vp_id, struct xive_q *q, u8 prio,
extern void xive_native_disable_queue(u32 vp_id, struct xive_q *q, u8 prio);
extern void xive_native_sync_source(u32 hw_irq);
extern void xive_native_sync_queue(u32 hw_irq);
extern bool is_xive_irq(struct irq_chip *chip);
extern int xive_native_enable_vp(u32 vp_id, bool single_escalation);
extern int xive_native_disable_vp(u32 vp_id);
extern int xive_native_get_vp_info(u32 vp_id, u32 *out_cam_id, u32 *out_chip_id);
extern bool xive_native_has_single_escalation(void);
extern int xive_native_get_queue_info(u32 vp_id, uint32_t prio,
u64 *out_qpage,
u64 *out_qsize,
u64 *out_qeoi_page,
u32 *out_escalate_irq,
u64 *out_qflags);
extern int xive_native_get_queue_state(u32 vp_id, uint32_t prio, u32 *qtoggle,
u32 *qindex);
extern int xive_native_set_queue_state(u32 vp_id, uint32_t prio, u32 qtoggle,
u32 qindex);
extern int xive_native_get_vp_state(u32 vp_id, u64 *out_state);
#else
static inline bool xive_enabled(void) { return false; }