Add Xen support

2009-03-11  Samuel Thibault  <samuel.thibault@ens-lyon.org>

	* i386/i386/vm_param.h (VM_MIN_KERNEL_ADDRESS) [MACH_XEN]: Set to
	0x20000000.
	* i386/i386/i386asm.sym (pfn_list) [VM_MIN_KERNEL_ADDRESS ==
	LINEAR_MIN_KERNEL_ADDRESS]: Define to constant PFN_LIST.

2009-02-27  Samuel Thibault  <samuel.thibault@ens-lyon.org>

	* i386/intel/pmap.c [MACH_HYP] (INVALIDATE_TLB): Call hyp_invlpg
	instead of flush_tlb when e - s is compile-time known to be
	PAGE_SIZE.

2008-11-27  Samuel Thibault  <samuel.thibault@ens-lyon.org>

	* i386/configfrag.ac (enable_pae): Enable by default on the Xen
	platform.

2007-11-14  Samuel Thibault  <samuel.thibault@ens-lyon.org>

	* i386/i386at/model_dep.c (machine_relax): New function.
	(c_boot_entry): Refuse to boot as dom0.

2007-10-17  Samuel Thibault  <samuel.thibault@ens-lyon.org>

	* i386/i386/fpu.c [MACH_XEN]: Disable unused fpintr().

2007-08-12  Samuel Thibault  <samuel.thibault@ens-lyon.org>

	* Makefile.am (clib_routines): Add _START.
	* i386/xen/xen_boothdr: Use _START for VIRT_BASE and PADDR_OFFSET. Add
	GUEST_VERSION and XEN_ELFNOTE_FEATURES.

2007-06-13  Samuel Thibault  <samuel.thibault@ens-lyon.org>

	* i386/i386/user_ldt.h (user_ldt) [MACH_XEN]: Add alloc field.
	* i386/i386/user_ldt.c (i386_set_ldt) [MACH_XEN]: Round allocation of
	LDT to a page, set back LDT pages read/write before freeing them.
	(user_ldt_free) [MACH_XEN]: Likewise.

2007-04-18  Samuel Thibault  <samuel.thibault@ens-lyon.org>

	* device/ds_routines.c [MACH_HYP]: Add hypervisor block and net devices.

2007-02-19  Thomas Schwinge  <tschwinge@gnu.org>

	* i386/xen/Makefrag.am [PLATFORM_xen] (gnumach_LINKFLAGS): Define.

	* Makefrag.am: Include `xen/Makefrag.am'.
	* configure.ac: Include `xen/configfrag.ac'.
	(--enable-platform): Support the `xen' platform.
	* i386/configfrag.ac: Likewise.
	* i386/Makefrag.am [PLATFORM_xen]: Include `i386/xen/Makefrag.am'.

2007-02-19  Samuel Thibault  <samuel.thibault@ens-lyon.org>
	    Thomas Schwinge  <tschwinge@gnu.org>

	* i386/xen/Makefrag.am: New file.
	* xen/Makefrag.am: Likewise.
	* xen/configfrag.ac: Likewise.

2007-02-11 (and later dates)  Samuel Thibault  <samuel.thibault@ens-lyon.org>

	Xen support
	* Makefile.am (clib_routines): Add _start.
	* Makefrag.am (include_mach_HEADERS): Add include/mach/xen.h.
	* device/cons.c (cnputc): Call hyp_console_write.
	* i386/Makefrag.am (libkernel_a_SOURCES): Move non-Xen source to
	[PLATFORM_at].
	* i386/i386/debug_trace.S: Include <i386/xen.h>
	* i386/i386/fpu.c [MACH_HYP] (init_fpu): Call set_ts() and clear_ts(),
	do not enable CR0_EM.
	* i386/i386/gdt.c: Include <mach/xen.h> and <intel/pmap.h>.
	[MACH_XEN]: Make gdt array extern.
	[MACH_XEN] (gdt_init): Register gdt with hypervisor.  Request 4gb
	segments assist.  Shift la_shift.
	[MACH_PSEUDO_PHYS] (gdt_init): Shift pfn_list.
	* i386/i386/gdt.h [MACH_XEN]: Don't define KERNEL_LDT and LINEAR_DS.
	* i386/i386/i386asm.sym: Include <i386/xen.h>.
	[MACH_XEN]: Remove KERNEL_LDT, Add shared_info's CPU_CLI, CPU_PENDING,
	CPU_PENDING_SEL, PENDING, EVTMASK and CR2.
	* i386/i386/idt.c [MACH_HYP] (idt_init): Register trap table with
	hypervisor.
	* i386/i386/idt_inittab.S: Include <i386/i386asm.h>.
	[MACH_XEN]: Set IDT_ENTRY() for hypervisor. Set trap table terminator.
	* i386/i386/ktss.c [MACH_XEN] (ktss_init): Request exception task switch
	from hypervisor.
	* i386/i386/ldt.c: Include <mach/xen.h> and <intel/pmap.h>
	[MACH_XEN]: Make ldt array extern.
	[MACH_XEN] (ldt_init): Set ldt readwrite.
	[MACH_HYP] (ldt_init): Register ldt with hypervisor.
	* i386/i386/locore.S: Include <i386/xen.h>. Handle KERNEL_RING == 1
	case.
	[MACH_XEN]: Read hyp_shared_info's CR2 instead of %cr2.
	[MACH_PSEUDO_PHYS]: Add mfn_to_pfn computation.
	[MACH_HYP]: Drop Cyrix I/O-based detection.  Read cr3 instead of %cr3.
	Make hypervisor call for pte invalidation.
	* i386/i386/mp_desc.c: Include <mach/xen.h>.
	[MACH_HYP] (mp_desc_init): Panic.
	* i386/i386/pcb.c: Include <mach/xen.h>.
	[MACH_XEN] (switch_ktss): Request stack switch from hypervisor.
	[MACH_HYP] (switch_ktss): Request ldt and gdt switch from hypervisor.
	* i386/i386/phys.c: Include <mach/xen.h>
	[MACH_PSEUDO_PHYS] (kvtophys): Do page translation.
	* i386/i386/proc_reg.h [MACH_HYP] (cr3): New declaration.
	(set_cr3, get_cr3, set_ts, clear_ts): Implement macros.
	* i386/i386/seg.h [MACH_HYP]: Define KERNEL_RING macro.  Include
	<mach/xen.h>
	[MACH_XEN] (fill_descriptor): Register descriptor with hypervisor.
	* i386/i386/spl.S: Include <i386/xen.h> and <i386/i386/asm.h>
	[MACH_XEN] (pic_mask): #define to int_mask.
	[MACH_XEN] (SETMASK): Implement.
	* i386/i386/vm_param.h [MACH_XEN] (HYP_VIRT_START): New macro.
	[MACH_XEN]: Set VM_MAX_KERNEL_ADDRESS to HYP_VIRT_START-
	LINEAR_MIN_KERNEL_ADDRESS + VM_MIN_KERNEL_ADDRESS.  Increase
	KERNEL_STACK_SIZE and INTSTACK_SIZE to 4 pages.
	* i386/i386at/conf.c [MACH_HYP]: Remove hardware devices, add hypervisor
	console device.
	* i386/i386at/cons_conf.c [MACH_HYP]: Add hypervisor console device.
	* i386/i386at/model_dep.c: Include <sys/types.h>, <mach/xen.h>.
	[MACH_XEN] Include <xen/console.h>, <xen/store.h>, <xen/evt.h>,
	<xen/xen.h>.
	[MACH_PSEUDO_PHYS]: New boot_info, mfn_list, pfn_list variables.
	[MACH_XEN]: New la_shift variable.
	[MACH_HYP] (avail_next, mem_size_init): Drop BIOS skipping mecanism.
	[MACH_HYP] (machine_init): Call hyp_init(), drop hardware
	initialization.
	[MACH_HYP] (machine_idle): Call hyp_idle().
	[MACH_HYP] (halt_cpu): Call hyp_halt().
	[MACH_HYP] (halt_all_cpus): Call hyp_reboot() or hyp_halt().
	[MACH_HYP] (i386at_init): Initialize with hypervisor.
	[MACH_XEN] (c_boot_entry): Add Xen-specific initialization.
	[MACH_HYP] (init_alloc_aligned, pmap_valid_page): Drop zones skipping
	mecanism.
	* i386/intel/pmap.c: Include <mach/xen.h>.
	[MACH_PSEUDO_PHYS] (WRITE_PTE): Do page translation.
	[MACH_HYP] (INVALIDATE_TLB): Request invalidation from hypervisor.
	[MACH_XEN] (pmap_map_bd, pmap_create, pmap_destroy, pmap_remove_range)
	(pmap_page_protect, pmap_protect, pmap_enter, pmap_change_wiring)
	(pmap_attribute_clear, pmap_unmap_page_zero, pmap_collect): Request MMU
	update from hypervisor.
	[MACH_XEN] (pmap_bootstrap): Request pagetable initialization from
	hypervisor.
	[MACH_XEN] (pmap_set_page_readwrite, pmap_set_page_readonly)
	(pmap_set_page_readonly_init, pmap_clear_bootstrap_pagetable)
	(pmap_map_mfn): New functions.
	* i386/intel/pmap.h [MACH_XEN] (INTEL_PTE_GLOBAL): Disable global page
	support.
	[MACH_PSEUDO_PHYS] (pte_to_pa): Do page translation.
	[MACH_XEN] (pmap_set_page_readwrite, pmap_set_page_readonly)
	(pmap_set_page_readonly_init, pmap_clear_bootstrap_pagetable)
	(pmap_map_mfn): Declare functions.
	* i386/i386/xen.h: New file.
	* i386/xen/xen.c: New file.
	* i386/xen/xen_boothdr.S: New file.
	* i386/xen/xen_locore.S: New file.
	* include/mach/xen.h: New file.
	* kern/bootstrap.c [MACH_XEN] (boot_info): Declare variable.
	[MACH_XEN] (bootstrap_create): Rebase multiboot header.
	* kern/debug.c: Include <mach/xen.h>.
	[MACH_HYP] (panic): Call hyp_crash() without delay.
	* linux/dev/include/asm-i386/segment.h [MACH_HYP] (KERNEL_CS)
	(KERNEL_DS): Use ring 1.
	* xen/block.c: New file.
	* xen/block.h: Likewise.
	* xen/console.c: Likewise.
	* xen/console.h: Likewise.
	* xen/evt.c: Likewise.
	* xen/evt.h: Likewise.
	* xen/grant.c: Likewise.
	* xen/grant.h: Likewise.
	* xen/net.c: Likewise.
	* xen/net.h: Likewise.
	* xen/ring.c: Likewise.
	* xen/ring.h: Likewise.
	* xen/store.c: Likewise.
	* xen/store.h: Likewise.
	* xen/time.c: Likewise.
	* xen/time.h: Likewise.
	* xen/xen.c: Likewise.
	* xen/xen.h: Likewise.
	* xen/public/COPYING: Import file from Xen.
	* xen/public/callback.h: Likewise.
	* xen/public/dom0_ops.h: Likewise.
	* xen/public/domctl.h: Likewise.
	* xen/public/elfnote.h: Likewise.
	* xen/public/elfstructs.h: Likewise.
	* xen/public/event_channel.h: Likewise.
	* xen/public/features.h: Likewise.
	* xen/public/grant_table.h: Likewise.
	* xen/public/kexec.h: Likewise.
	* xen/public/libelf.h: Likewise.
	* xen/public/memory.h: Likewise.
	* xen/public/nmi.h: Likewise.
	* xen/public/physdev.h: Likewise.
	* xen/public/platform.h: Likewise.
	* xen/public/sched.h: Likewise.
	* xen/public/sysctl.h: Likewise.
	* xen/public/trace.h: Likewise.
	* xen/public/vcpu.h: Likewise.
	* xen/public/version.h: Likewise.
	* xen/public/xen-compat.h: Likewise.
	* xen/public/xen.h: Likewise.
	* xen/public/xencomm.h: Likewise.
	* xen/public/xenoprof.h: Likewise.
	* xen/public/arch-x86/xen-mca.h: Likewise.
	* xen/public/arch-x86/xen-x86_32.h: Likewise.
	* xen/public/arch-x86/xen-x86_64.h: Likewise.
	* xen/public/arch-x86/xen.h: Likewise.
	* xen/public/arch-x86_32.h: Likewise.
	* xen/public/arch-x86_64.h: Likewise.
	* xen/public/io/blkif.h: Likewise.
	* xen/public/io/console.h: Likewise.
	* xen/public/io/fbif.h: Likewise.
	* xen/public/io/fsif.h: Likewise.
	* xen/public/io/kbdif.h: Likewise.
	* xen/public/io/netif.h: Likewise.
	* xen/public/io/pciif.h: Likewise.
	* xen/public/io/protocols.h: Likewise.
	* xen/public/io/ring.h: Likewise.
	* xen/public/io/tpmif.h: Likewise.
	* xen/public/io/xenbus.h: Likewise.
	* xen/public/io/xs_wire.h: Likewise.

1 files changed, 138 insertions, 0 deletions

diff --git a/xen/public/xenoprof.h b/xen/public/xenoprof.h
new file mode 100644
index 0000000..183078d
--- /dev/null
+++ b/xen/public/xenoprof.h
@@ -0,0 +1,138 @@
+/******************************************************************************
+ * xenoprof.h
+ * 
+ * Interface for enabling system wide profiling based on hardware performance
+ * counters
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Copyright (C) 2005 Hewlett-Packard Co.
+ * Written by Aravind Menon & Jose Renato Santos
+ */
+
+#ifndef __XEN_PUBLIC_XENOPROF_H__
+#define __XEN_PUBLIC_XENOPROF_H__
+
+#include "xen.h"
+
+/*
+ * Commands to HYPERVISOR_xenoprof_op().
+ */
+#define XENOPROF_init                0
+#define XENOPROF_reset_active_list   1
+#define XENOPROF_reset_passive_list  2
+#define XENOPROF_set_active          3
+#define XENOPROF_set_passive         4
+#define XENOPROF_reserve_counters    5
+#define XENOPROF_counter             6
+#define XENOPROF_setup_events        7
+#define XENOPROF_enable_virq         8
+#define XENOPROF_start               9
+#define XENOPROF_stop               10
+#define XENOPROF_disable_virq       11
+#define XENOPROF_release_counters   12
+#define XENOPROF_shutdown           13
+#define XENOPROF_get_buffer         14
+#define XENOPROF_set_backtrace      15
+#define XENOPROF_last_op            15
+
+#define MAX_OPROF_EVENTS    32
+#define MAX_OPROF_DOMAINS   25
+#define XENOPROF_CPU_TYPE_SIZE 64
+
+/* Xenoprof performance events (not Xen events) */
+struct event_log {
+    uint64_t eip;
+    uint8_t mode;
+    uint8_t event;
+};
+
+/* PC value that indicates a special code */
+#define XENOPROF_ESCAPE_CODE ~0UL
+/* Transient events for the xenoprof->oprofile cpu buf */
+#define XENOPROF_TRACE_BEGIN 1
+
+/* Xenoprof buffer shared between Xen and domain - 1 per VCPU */
+struct xenoprof_buf {
+    uint32_t event_head;
+    uint32_t event_tail;
+    uint32_t event_size;
+    uint32_t vcpu_id;
+    uint64_t xen_samples;
+    uint64_t kernel_samples;
+    uint64_t user_samples;
+    uint64_t lost_samples;
+    struct event_log event_log[1];
+};
+#ifndef __XEN__
+typedef struct xenoprof_buf xenoprof_buf_t;
+DEFINE_XEN_GUEST_HANDLE(xenoprof_buf_t);
+#endif
+
+struct xenoprof_init {
+    int32_t  num_events;
+    int32_t  is_primary;
+    char cpu_type[XENOPROF_CPU_TYPE_SIZE];
+};
+typedef struct xenoprof_init xenoprof_init_t;
+DEFINE_XEN_GUEST_HANDLE(xenoprof_init_t);
+
+struct xenoprof_get_buffer {
+    int32_t  max_samples;
+    int32_t  nbuf;
+    int32_t  bufsize;
+    uint64_t buf_gmaddr;
+};
+typedef struct xenoprof_get_buffer xenoprof_get_buffer_t;
+DEFINE_XEN_GUEST_HANDLE(xenoprof_get_buffer_t);
+
+struct xenoprof_counter {
+    uint32_t ind;
+    uint64_t count;
+    uint32_t enabled;
+    uint32_t event;
+    uint32_t hypervisor;
+    uint32_t kernel;
+    uint32_t user;
+    uint64_t unit_mask;
+};
+typedef struct xenoprof_counter xenoprof_counter_t;
+DEFINE_XEN_GUEST_HANDLE(xenoprof_counter_t);
+
+typedef struct xenoprof_passive {
+    uint16_t domain_id;
+    int32_t  max_samples;
+    int32_t  nbuf;
+    int32_t  bufsize;
+    uint64_t buf_gmaddr;
+} xenoprof_passive_t;
+DEFINE_XEN_GUEST_HANDLE(xenoprof_passive_t);
+
+
+#endif /* __XEN_PUBLIC_XENOPROF_H__ */
+
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */