diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/include/linux/lguest_launcher.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/include/linux/lguest_launcher.h')
-rw-r--r-- | kernel/include/linux/lguest_launcher.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/kernel/include/linux/lguest_launcher.h b/kernel/include/linux/lguest_launcher.h new file mode 100644 index 000000000..acd5b1256 --- /dev/null +++ b/kernel/include/linux/lguest_launcher.h @@ -0,0 +1,44 @@ +#ifndef _LINUX_LGUEST_LAUNCHER +#define _LINUX_LGUEST_LAUNCHER +/* Everything the "lguest" userspace program needs to know. */ +#include <linux/types.h> + +/*D:010 + * Drivers + * + * The Guest needs devices to do anything useful. Since we don't let it touch + * real devices (think of the damage it could do!) we provide virtual devices. + * We emulate a PCI bus with virtio devices on it; we used to have our own + * lguest bus which was far simpler, but this tests the virtio 1.0 standard. + * + * Virtio devices are also used by kvm, so we can simply reuse their optimized + * device drivers. And one day when everyone uses virtio, my plan will be + * complete. Bwahahahah! + */ + +/* Write command first word is a request. */ +enum lguest_req +{ + LHREQ_INITIALIZE, /* + base, pfnlimit, start */ + LHREQ_GETDMA, /* No longer used */ + LHREQ_IRQ, /* + irq */ + LHREQ_BREAK, /* No longer used */ + LHREQ_EVENTFD, /* No longer used. */ + LHREQ_GETREG, /* + offset within struct pt_regs (then read value). */ + LHREQ_SETREG, /* + offset within struct pt_regs, value. */ + LHREQ_TRAP, /* + trap number to deliver to guest. */ +}; + +/* + * This is what read() of the lguest fd populates. trap == + * LGUEST_TRAP_ENTRY for an LHCALL_NOTIFY (addr is the + * argument), 14 for a page fault in the MMIO region (addr is + * the trap address, insn is the instruction), or 13 for a GPF + * (insn is the instruction). + */ +struct lguest_pending { + __u8 trap; + __u8 insn[7]; + __u32 addr; +}; +#endif /* _LINUX_LGUEST_LAUNCHER */ |