Mercurial > hvf > hvf-old
changeset 606:165e37f95fb8
nss/login: set up interrupt handlers
Signed-off-by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
| author | Josef 'Jeff' Sipek <jeffpc@josefsipek.net> |
|---|---|
| date | Fri, 09 Dec 2011 21:22:53 -0500 |
| parents | 2dc1a4364955 |
| children | 1b796ccc6e1f |
| files | nss/login/CMakeLists.txt nss/login/die.s nss/login/int.h nss/login/int.s nss/login/io.c nss/login/linker.script nss/login/main.c nss/login/mch.c nss/login/misc.h nss/login/prg.c nss/login/psa.s |
| diffstat | 11 files changed, 308 insertions(+), 3 deletions(-) [+] |
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--- a/nss/login/CMakeLists.txt Fri Dec 09 21:05:17 2011 -0500 +++ b/nss/login/CMakeLists.txt Fri Dec 09 21:22:53 2011 -0500 @@ -1,3 +1,5 @@ +set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -I ${CMAKE_CURRENT_SOURCE_DIR}") + set(CMAKE_EXE_LINKER_FLAGS "-T ${CMAKE_CURRENT_SOURCE_DIR}/linker.script") -add_executable(login entry.s main.c) +add_executable(login entry.s psa.s int.s die.s main.c io.c mch.c prg.c)
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/nss/login/die.s Fri Dec 09 21:22:53 2011 -0500 @@ -0,0 +1,15 @@ +/* + * (C) Copyright 2007-2011 Josef 'Jeff' Sipek <jeffpc@josefsipek.net> + * + * This file is released under the GPLv2. See the COPYING file for more + * details. + */ + +.text + + .align 4 +.globl die + .type die, @function +die: + larl %r1,disabled_wait + lpswe 0(%r1)
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/nss/login/int.h Fri Dec 09 21:22:53 2011 -0500 @@ -0,0 +1,31 @@ +/* + * (C) Copyright 2007-2011 Josef 'Jeff' Sipek <jeffpc@josefsipek.net> + * + * This file is released under the GPLv2. See the COPYING file for more + * details. + */ + +#ifndef __INT_H +#define __INT_H + +extern void rst_int(); +extern void ext_int(); +extern void svc_int(); +extern void prg_int(); +extern void mch_int(); +extern void io_int(); + +extern struct psw psw_rst_old; +extern struct psw psw_ext_old; +extern struct psw psw_svc_old; +extern struct psw psw_prg_old; +extern struct psw psw_mch_old; +extern struct psw psw_io_old; +extern struct psw psw_rst_new; +extern struct psw psw_ext_new; +extern struct psw psw_svc_new; +extern struct psw psw_prg_new; +extern struct psw psw_mch_new; +extern struct psw psw_io_new; + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/nss/login/int.s Fri Dec 09 21:22:53 2011 -0500 @@ -0,0 +1,32 @@ +/* + * (C) Copyright 2007-2011 Josef 'Jeff' Sipek <jeffpc@josefsipek.net> + * + * This file is released under the GPLv2. See the COPYING file for more + * details. + */ + +.text + +/* we should never get a reset interrupt */ + .align 4 +.globl rst_int + .type rst_int, @function +rst_int: + larl %r1,disabled_wait + lpswe 0(%r1) + +/* we should never get an external interrupt */ + .align 4 +.globl ext_int + .type ext_int, @function +ext_int: + larl %r1,disabled_wait + lpswe 0(%r1) + +/* we should never get a svc interrupt */ + .align 4 +.globl svc_int + .type svc_int, @function +svc_int: + larl %r1,disabled_wait + lpswe 0(%r1)
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/nss/login/io.c Fri Dec 09 21:22:53 2011 -0500 @@ -0,0 +1,13 @@ +/* + * (C) Copyright 2007-2011 Josef 'Jeff' Sipek <jeffpc@josefsipek.net> + * + * This file is released under the GPLv2. See the COPYING file for more + * details. + */ + +#include <misc.h> + +void io_int() +{ + die(); +}
--- a/nss/login/linker.script Fri Dec 09 21:05:17 2011 -0500 +++ b/nss/login/linker.script Fri Dec 09 21:22:53 2011 -0500 @@ -2,6 +2,9 @@ { ENTRY(START) + . = 0; + .psa : { *psa.s.o(.data) } + . = 0x100000 - 160; .stack : { *entry.s.o(.data) }
--- a/nss/login/main.c Fri Dec 09 21:05:17 2011 -0500 +++ b/nss/login/main.c Fri Dec 09 21:22:53 2011 -0500 @@ -5,8 +5,120 @@ * details. */ +#include <arch.h> +#include <string.h> +#include <int.h> +#include <misc.h> + +/* + * This guest OS has a very simple purpose. It is responsible for + * displaying the login splash, prompting the user for a username and + * password, and then querying CP to verify that the password is correct. + * If correct, CP will detach the rdev from this guest, and attach it to the + * user's guest. + * + * +------------------------------------------------+ + * | +------------------------------------+ | + * | | virt_sys | | + * | | +--------+ +-------+ +---------+ | +----+| + * | | |virt_cpu| |storage| |virt_cons|<--+-->|rdev|| + * | | +--------+ +-------+ +---------+ | +----+| + * | | /\ | | + * | | || | | + * | | \/ | | + * | | +--------+ +--------+ +--------+ | | + * | | |virt_dev| |virt_dev| |virt_dev| | | + * | | +--------+ +--------+ +--------+ | | + * | +------------------------------------+ | + * | | + * | +------------------------------------+ | + * | | virt_sys | | + * | | +--------+ +-------+ +---------+ | +----+| + * | | |virt_cpu| |storage| |virt_cons|<--+-->|rdev|| + * | | +--------+ +-------+ +---------+ | +----+| + * | | /\ | | + * | | || | | + * | | \/ | | + * | | +--------+ +--------+ +--------+ | | + * | | |virt_dev| |virt_dev| |virt_dev| | | + * | | +--------+ +--------+ +--------+ | | + * | +------------------------------------+ | + * | | + * | : | + * | : | + * | : | + * | | + * | +------------------------------------+ | + * | | virt_sys (*LOGIN) | | + * | | +--------+ +-------+ +---------+ | | + * | | |virt_cpu| |storage| |virt_cons| | | + * | | +--------+ +-------+ +---------+ | | + * | | +--------+ | +----+| + * | | |virt_dev|<--+-->|rdev|| + * | | +--------+ | +----+| + * | | +--------+ | +----+| + * | | |virt_dev|<--+-->|rdev|| + * | | +--------+ | +----+| + * | | +--------+ | +----+| + * | | |virt_dev|<--+-->|rdev|| + * | | +--------+ | +----+| + * | +------------------------------------+ | + * +------------------------------------------------+ + * + * + * In other words, here are the actions that CP takes: + * + * host IPL: + * - ipl *LOGIN + * - attach operator console to *LOGIN + * + * login: + * - alloc virt sys, virt cpu, virt devices, virt cons, storage + * - detach console rdev from *LOGIN + * - attach console rdev to virt cons + * + * logout/force: + * - free virt sys, virt cpu, virt devices, virt cons, storage + * - attach console rdev to *LOGIN + * + * disconnect: + * - detach console rdev from virt cons + * - attach console rdev to *LOGIN + * + * reconnect: + * - detach console rdev from *LOGIN + * - attach console rdev to virt cons + */ + +struct psw disabled_wait = { .w = 1, .ea = 1, .ba = 1, .ptr = 0xfafafa, }; +struct psw enabled_wait = { .io = 1, .m = 1, .w = 1, .ea = 1, .ba = 1, }; + +static struct psw __new_rst = { .ea = 1, .ba = 1, .ptr = ADDR64(&rst_int), }; +static struct psw __new_ext = { .ea = 1, .ba = 1, .ptr = ADDR64(&ext_int), }; +static struct psw __new_svc = { .ea = 1, .ba = 1, .ptr = ADDR64(&svc_int), }; +static struct psw __new_prg = { .ea = 1, .ba = 1, .ptr = ADDR64(&prg_int), }; +static struct psw __new_mch = { .ea = 1, .ba = 1, .ptr = ADDR64(&mch_int), }; +static struct psw __new_io = { .ea = 1, .ba = 1, .ptr = ADDR64(&io_int), }; + void start() { - for(;;) - ; + /* set up interrupt PSWs */ + memcpy(&psw_rst_new, &__new_rst, sizeof(struct psw)); + memcpy(&psw_ext_new, &__new_ext, sizeof(struct psw)); + memcpy(&psw_svc_new, &__new_svc, sizeof(struct psw)); + memcpy(&psw_prg_new, &__new_prg, sizeof(struct psw)); + memcpy(&psw_mch_new, &__new_mch, sizeof(struct psw)); + memcpy(&psw_io_new, &__new_io, sizeof(struct psw)); + + // FIXME: enable all 8 I/O classes (cr6?) + + /* this enables I/O & MCH interrupts */ + asm volatile( + "lpswe %0\n" + : /* output */ + : /* input */ + "m" (enabled_wait) + ); + + die(); }
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/nss/login/mch.c Fri Dec 09 21:22:53 2011 -0500 @@ -0,0 +1,13 @@ +/* + * (C) Copyright 2007-2011 Josef 'Jeff' Sipek <jeffpc@josefsipek.net> + * + * This file is released under the GPLv2. See the COPYING file for more + * details. + */ + +#include <misc.h> + +void mch_int() +{ + die(); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/nss/login/misc.h Fri Dec 09 21:22:53 2011 -0500 @@ -0,0 +1,15 @@ +/* + * (C) Copyright 2007-2011 Josef 'Jeff' Sipek <jeffpc@josefsipek.net> + * + * This file is released under the GPLv2. See the COPYING file for more + * details. + */ + +#ifndef __MISC_H +#define __MISC_H + +#define ADDR64(x) ((u64) (x)) + +extern void die(); + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/nss/login/prg.c Fri Dec 09 21:22:53 2011 -0500 @@ -0,0 +1,13 @@ +/* + * (C) Copyright 2007-2011 Josef 'Jeff' Sipek <jeffpc@josefsipek.net> + * + * This file is released under the GPLv2. See the COPYING file for more + * details. + */ + +#include <misc.h> + +void prg_int() +{ + die(); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/nss/login/psa.s Fri Dec 09 21:22:53 2011 -0500 @@ -0,0 +1,56 @@ +/* + * (C) Copyright 2007-2011 Josef 'Jeff' Sipek <jeffpc@josefsipek.net> + * + * This file is released under the GPLv2. See the COPYING file for more + * details. + */ + +.data +.org 0x120 +.globl psw_rst_old +psw_rst_old: + +.org 0x130 +.globl psw_ext_old +psw_ext_old: + +.org 0x140 +.globl psw_svc_old +psw_svc_old: + +.org 0x150 +.globl psw_prg_old +psw_prg_old: + +.org 0x160 +.globl psw_mch_old +psw_mch_old: + +.org 0x170 +.globl psw_io_old +psw_io_old: + +.org 0x1a0 +.globl psw_rst_new +psw_rst_new: + +.org 0x1b0 +.globl psw_ext_new +psw_ext_new: + +.org 0x1c0 +.globl psw_svc_new +psw_svc_new: + +.org 0x1d0 +.globl psw_prg_new +psw_prg_new: + +.org 0x1e0 +.globl psw_mch_new +psw_mch_new: + +.org 0x1f0 +.globl psw_io_new +psw_io_new: +